I had the same problem i had spark but didnt have injector pulse, i then assumed i had spark then the crank angle would be fine so i went about testing the injection/wiring side of things. Fuel pump runs, good pressure up to. It started with a spray of fuel to the air intake. However, the module that controls this feature can fail and then we have no spark and no injector pulse/signal. Engine spins over normally. if you have voltage and the ignition module is good, check for an open or shorted pickup coil. Ok so here's the deal. 02 WRX, no spark, no injector pulse. On newer gasoline direct injection (GDI) systems, however, a NOID light is no help. 2l standard trans. Truck will turn over but won’t run/no fuel to injectors, will run if fuel is added manually, but only for a minute. No 12 second fuel pump run. spray some starting fluid in the intake and see if you get a pop. "no" means it will not work with either, i. 95 f150 no injector pulse keyword after analyzing the system lists the list of keywords related and the list of websites with no spark or injector pulse, all of. We have spark, but no injector pulse. We tested the power off of the coil pack connecters and they are showing that we are getting 12v so I dont think it's a grounding issue. The MAXI injector on/off time is controlled via the pcm by pulse width modulation, which is basically the injector timing and fuel delivery is either shorten or longer base on inputs from the various sensors ( MAP, throttle position, temperature and engine load. Very rare to have computers go out. Pressure in the line seems good though. Tach in +12V via two wires, one ignition power, one main. Have no idea where to look :/. 1988 f250 460 cranks no start. 3 EFI no spark no injector pulse although there is pressure going to the injectors. Is the Service Engine Soon light on when the engine is running? If so, what DTC's are stored? nothingleft09. i have tried installing a new. This is the No Spark No Fuel No Injector Pulse Helppppp!!!- Jeepforum of a photo I get from the 1998 Jeep Grand Cherokee Fuel Pump Relay package. Let's start with the meat of the matter. A broken taped up master key. Load test the battery to see if there is a dead cell or an open under load. Dodge Dakota No Start, No Fuel Pressure Testing by ScannerDanner. any ideas on the direction I should take. I checked the ground from injector to computer and it ohm'd good. [FIXED] Explorer no spark - confirm my diagnosis was created by Exranger06 1999 Ford Explorer 4. If the pick-up coil is the problem, you might be better off replacing the distributor. If a bias of 1mS is added to the final pulse width, a 2. i have spark, it will run on brake kleen. In relation to your no injector pulse problem, check the wiring harness from the distributor to the ECM. Holden Commodore VS-VT Fault -No Injector pulse or Spark - Fuel pump working and pressure OK. put the pulse sensor over it. if you have voltage and the ignition module is good, check for an open or shorted pickup coil. If you have spark, just no injector pulse, make sure you have power to injector. I want to say the pick-up coil in the. It always cranks but not start when cold. My friend and I took the injectors on my 98 wrx swap out to test and clean them, re-instralled them and now it won't start. what am i overlooking. Thread starter dstmsp03; Start date Nov 14, 2010; 1; 2; Next. This could cause no spark or fuel. During cranking, we are getting spark at the spark plugs, but NO fuel injector pulses. A bad crank sensor would prevent both spark & injector pulse. No pulse while in crank Like I said, the truck will start and run if we use a remote starter switch and injectors pulse. Any suggestions for further testing? Thanks CRAIG. No spark to distibutor. Also pulled a plug and no fuel on it however I do have fuel pressure. Since he states that the injectors aren't firing (but the engine has spark), either the ground pulse isn't reaching the injectors or they aren't powered. I can find no codes in the computer. S call 951-672-8501951-672-8501. I am at a loss. Also, if I send ground to the injector from the ECU plug, the noid light illuminates. Just got the motor in and ready to fire but it has no spark or injector pulse. Some investigation reveals that it has no spark. Still no cranks no start. No spark to distibutor. My 11 Second AU Fairlane. Truck will turn over but won’t run/no fuel to injectors, will run if fuel is added manually, but only for a minute. Use Fuel Injectors for identification. I went through the wire job on the new module and found out he had the crank signal and ground wires backwards. The spark problem was the module being miswired by the person who worked on my car. I have spark, fuel in the rail and pump is working. 7 TBI no spark no injector pulse. Joined Apr. No Injector Pulse MKIII Supra. checked with test light on the big [email protected]# plug and had power,but would not pulse while cranking! talked to ex chevy tech whom stated ECM seemed fried as it wasnt grounding fuel injectors to create pulse. Pull the vacuum hose off and turn the key on (engine off) to pressurize the system. That would show a flicker if the fuel injector was pulsing, correct?. I checked the ground from injector to computer and it ohm'd good. Holden Commodore VS-VT Fault -No Injector pulse or Spark - Fuel pump working and pressure OK. In case of that, there is no injector pulse or spark, this means that is your ECU have failed in operating in this case you have to get your ECU changed or visit an expert. I have a cam code even after swapping with a good sensor, I have not compleatly tested the ground wire going to the PCM but I was thinking maby the cAmshaft sprocket is different due to the crank sprocket. I have fuel pressure, but no spark or pulse. Most fuse boxes with injector fuses will share two injectors off one pin. I changed the pip (pick up coil) had the ignition control module checked @2 different places and both said it was good. 1994 chevy pick up, 2wheel drive, 1500 series. But we've got no spark and no fuel on the spark plugs. Spark would occur then stop, (intermittent spark). 0 Lx, Injectors Not Pulsing But Have 12v At Red. No Start Testing Basics - Spark, Injector Pulse and Fuel Pressure (Hyundai Santa Fe) by ScannerDanner. They we're able to manually get spark and injector pulse by pulsing them with equipment they have. The crank sensor can cause no spark and no pulse to the injectors, however, it would be the ground side of the injector harness that was missing. 0L Turbo Powertrain (EJ Series Factory 2. Have replaced ICM(grey box on side of distributor0, no fusible link problems, key sends power to "coil"(black transformer looking item bolted to top of engine on drivers side from which wire goes to centre post of distributor). $88 - $111. By KingCobra07 in forum 4-Tec Performance Replies: 10 Last Post: 06-13-2014, 10:22 PM. have no spark or injector pulse - Check the Crank sensor or the Ignition Module (and fuses) If the car does not start, establish the information required to pin the problem area down to one of the three guidelines listed above. However, like larry explained the injectors will not pulse. I am an ASE master tech. Nov 24, 2012. Also, no power to the fuel pump. Hello all, I have a 2001 Xterra SE with the 3. 5 or less volts is usually the cut-out point where the engine will misfire and lose the injector pulses. No 12 second fuel pump run. No injector pulse Discussion in 'Engine & Performance' started by Snackcake 01, Aug 6, 2017. if power is being supplied to both injectors and coils. This is in my 69 Camaro with AAW Classic Update harness. Using a Fuel Injector Pulse Tester is the safest way to see if the entire assembly is bad on the CPI ‘Spider’ system (this is because this assembly only has one fuel injector solenoid inside). 2010 Chrysler PT CRUISER (VIN - 3A4GY5F94AT******) Part Numbers: Customer Report: Diagnostic Report: This vehicle has been tested several times and found to be faulty due to mecha. checked with test light on the big [email protected]# plug and had power,but would not pulse while cranking! talked to ex chevy tech whom stated ECM seemed fried as it wasnt grounding fuel injectors to create pulse. Any suggestions for further testing? Thanks CRAIG. The additional ignition input #2 (VR2in on Ampseal pin #4) is taken from the injector driver 1 pulse width modulation (PWM) processor pin (PT2), and the second ignition output (IGN2 on Ampseal pin #11) comes from the Injector 2 PWM pin (PT4). AEM EMS 30-6030 (not sure what firmware version), factory engine harness with a couple tweaks, but nothing new since it last ran. I have spark and fuel pressure but still no injector pulse. [FIXED] Explorer no spark - confirm my diagnosis was created by Exranger06 1999 Ford Explorer 4. But you seem to have comunication so that's a good sign. If the G signal is not present while cranking the engine, the ECU will not be able to identify when to produce the injection signal. Chris Murray Spark is good. Just got the motor in and ready to fire but it has no spark or injector pulse. please I need help. Discussion Starter • #1 • Apr 27, 2017. I have no injector pulse and truck will not start. 0L Turbo Powertrain (EJ Series Factory 2. The only other thing that can cause this is a bad ECM and that is rare but possible. I check the following items, crank sensor, cam sensor and wiring, I also check all the power input and grounds going to the ECU fuses all check OK. Sounds like the PCM isn`t switching on. What I do not have is the ground pulse to fire the injectors. After turning over that many times figured it. No pulse while in crank Like I said, the truck will start and run if we use a remote starter switch and injectors pulse. Page 1 of 2 1 2 Next > Jun 24, 2010 #1 fuel injector spray AND spark control are both run by the TFI and PIP. Solution - Check for faulty EFI control relay. jademiner · Registered. The PCM is not providing power due to a defective output circuit. So we went to fire it up, crank but no start. OK, I recently replaced the spark plugs, ignition wires, air filter, ignitioon coil packs, and camshaft sensor. I suggest charge the battery, check the fuse-able link at the + battery cable in the trunk it feeds power to the DME and fuel pump relays behind the coolant tank. Since that post I have wired in a different harness and checked all powers and grounds and I see no problem. My friend and I took the injectors on my 98 wrx swap out to test and clean them, re-instralled them and now it won't start. Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This test will tell you if the computer is pulsing the fuel injectors open when cranking the engine over. rpg5553: Built Motor Discussion: 0: 10-22-2010 09:18 AM: No spark, No. and yes, if you lost opti pulses, you'd lose spark and fuel -- but it's weird for this to happen right after swapping an opti. 7 has spark, has injector pulse, compression 02 tundra 4. I have spark,fuel,fuel pressure,compression,and the timing belt is good. 95 GMC C2500 5. usdm 550's injectors, I have spark on my spark plugs, the injectors have power but when I check the ground pulse to the injectors no pulse from out the ecu pins nothing I check it at the ecu pins to make sure it wasn't the harness can the. This information may not apply to all makes and models. There was no fuel injector pulse. I did pull the ignition control module and had it tested, it came back good. [FIXED] Explorer no spark - confirm my diagnosis was created by Exranger06 1999 Ford Explorer 4. 00+ computer without being 100% sure that's what it is. Discussion Starter • #1 • Apr 27, 2017. I still don't have injector pulse and I'm really leaning towards the injector harness itself. You may have to register before you can post: click the register link above to proceed. The engine has only 5,000 miles on it. In this case a DRB III. In all cases, you should choose speed density unless you have a good reason to do otherwise, and understand how this will change your tuning efforts. The shop found the ignition key body was broken and NATS (Nissan Anti-Theft System) immobilizer codes P1610 and P1614. com Chevrolet k1500 getting spark to all plugs, gas to TBI, continuity from ECM to injectors, but no pulse to injectors. spark but no injector pulse. Tools Fuel Injection Pulse Tester Enables you to check cylinder balance by firing individual injectors in three different ranges: 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds, 100 pulses of 5 milliseconds. It has no injector pulse , but does have spark , although I guess it may be firing at the wrong time , coz the introduction of aerostart {ether} does nothing. I have gotten so sick of this pickup, I just went and bought a ’93 Mazda B2200 that has a carburetor and it runs perfect. "OK" means the combination will work with either simultaneous or alternating. Hello to all I need help! I have 2005 nissan maxima SE 3. I have replaced the cam sensor, crank sensor, and coil. But injectors pulse works off of ground from ecmyou have to have the grounds at thermostat and intake or will not pulse injectors. 0 has spark but no injector pulse on #2 or #4 Injectors are pulsed by ECU using ground. fix the metal part so it works. It has spark but no pulse to the injectors. Since it takes 1mS for the injector to open, fuel will only flow for. Plenty of spark under crank position. Remove one and only one fuel injector nylon tube from it's place on the intake manifold. 5 MSP Nov 14, 2010 #1 dont normally ask for help. Also pulled a plug and no fuel on it however I do have fuel pressure. That will cost you a lot of wasted money. Next i checked for spark using a spark tester then spray carb cleaner in the Tb and it starts up long enough to burn off the cleaner. 04 gto no spark or injector pulse. 4 ms Technician A says that the cylinder head and piston design of a GDI engine is the same as in a port injected engine. Save Share. No Injector pulse Sign in to follow this. You probably f'ed up the crank or reference sensors on the bellhousings when swapping. Not getting injector pulse. This tells the ECM how fast the engine is turning. 2002 Mitsubishi Galant no start, no spark, no injector pulse Plz help!!! Hello, last month drove car less than a mile and when I tried to start her back up a few hours later the car cranked but would not start. No Injector pulse. I posted this a couple of weeks ago but stated some wrong information. PURPOSE OF THIS ARTICLE Learning how to interpret injector drive patterns from a Lab. Still no cranks no start. SOS no injector pulse on the trail. It will not start due to no injector pulse. - no start - no injector pulse - rough idle - misfire - starts and stalls - failed emissions Fix - replace ALL fuel injectors Tests shown - how to measure injector resistance at the 4 pin injector. I have a jdm 2jz gte I'm my 88 supra single turbo 76mm. 30 psi sounds a little low. If you want a guaranteed non-immobilizer ECM, use a 4-plug 1997 ECM or have the immobilizer EEPROM chip erased in yours. More Electrical HELP! No injector pulse, no spark from coil. I have no injector pulse and truck will not start. 3 Answers the car will start but stalls instantly. Gas Stove Ignition Parts, find complete details about Gas Stove Ignition Parts, electronic gas igniter, electronic gas spark ignition, pulse ignition oven parts - Jinan Sinopts Energy Technology Inc. then put the cut boot back on. I would take a look at that cps. We've tried setting the ecu to stock settings and back to 93 octane stage 2 ap and checked all the wiring. ?A while back, the car. what else drives the the injectors besides the ecu. I have no injector pulse and truck will not start. Plenty of spark under crank position. Recommended Posts. I have spark, fuel in the rail and pump is working. Last edited: Jul 28, 2013 Earl43P. Page 1 of 2 1 2 Next > Jun 24, 2010 #1 fuel injector spray AND spark control are both run by the TFI and PIP. I can't ever get spark or injector pulse. Will run with fuel added to the intake but wont run on its own. So I was gifted a very well maintained, garage kept Sierra. just finished my motor build. I do not have injector pulse. i have tried installing a new. In a no-start situation, the first steps should be to check for spark, injector pulse and fuel pump operation (as noted above). If the plug is fouled that tells me it is getting fuel and no spark. Also I have power at injector and plenty of fuel pressure. When cranking the tach read 1 rpm and i have no spark or injector pulse width. 95 GMC C2500 5. checked all injector plugs with a noid light and i have pulse. via ignition module. as the cas has nothing to do with the physical conection to the injectors or spark. dave5950 · Registered. If the injectors appear to be working, but the engine will not start, the engine may be flooded. T Car ran fine, now has no spark and injectors aren't working. Pour fuel in spark plug hole and will start but will not run but for a few seconds or till gas is burned. So crank sensor seems ok and spark strength good. I have good feed and control on the coil and the ckp but if I remember right that particular system has 2 ckp sensors. This vehicle uses the infamous TFI-IV module which is prone to failure and this module is what provides a signal to the ECM, which then triggers the injectors. My ground also is good. Fuel injectors are usually powered directly by a fuse and then grounded by the engine computer. Let's start with the meat of the matter. My friend and I took the injectors on my 98 wrx swap out to test and clean them, re-instralled them and now it won't start. Injector pulse with no spark is a power stage or coil. Jump to Latest Follow 1 - 15 of 15 Posts. This tells the ECM how fast the engine is turning. Show Full Signature 2003 Cobra - 2. We've tried setting the ecu to stock settings and back to 93 octane stage 2 ap and checked all the wiring. I read a post on Just Answers from a technician named Frank back on August 6 2006 and he spelled it out this way. i find out, the fuel injector didnt spark any fuel at all. As I mentioned I checked the trigger points and they appear to open and close that part of the circuit. I checked all fuse box fuses. Re: heeeelllpppp 01 saturn sl2 no injector pulse i have checked fuel air spark. The owner switched the ignition module over to tbe 86-87 module. Once you've verified if the injector is spraying or not, RE-INSTALL the injector back into its cavity (in the intake manifold) and proceed to the next one. The car ran when I parked it in 2011. Other times it starts right up. I checked all fuse box fuses. Jun 4, 2014. We've got spark and with a little ether the car ran for a few seconds normally, so i can rule out any sort of timing issue as a possible cause for the no start. Good spark, good fuel pressure, but No injector pulse?If this is true , you chould have some Codes stored in the ECU / computer. Hello to all I need help! I have 2005 nissan maxima SE 3. I've replaced the ignition control module and the wires to it. Jump to Latest Follow 1 - 2 of 2 Posts. No coil pulse, no injector pulse No coil pulse, no injector pulse. What I have is: Fuel pressure of 38 to 40 psi, good compression and ample spark. SOURCE: What does it mean when u have no pulse in the injectors and spark plugs in a 2002 Chrysler 300M. As I mentioned I checked the trigger points and they appear to open and close that part of the circuit. 0 Mustang Tech: 16: Jan 28, 2020: A: 2006 ford mustang v6 ticking noise coming from engine: 2005 - 2014 Specific V6 Tech. i am getting spark to the plugs but I am not getting and pulse reading to the injectors. Once ecm senses 400 rpm,s from engine it takes over. 10-08-13 08:10 PM - Post# 2389412 I've been looking at old posts on this issue for several days and am still stumped. There should be about 12-12. scrunch the metal part in size but dont ruin it. Holden Commodore VS-VT Fault -No Injector pulse or Spark - Fuel pump working and pressure OK. , not at all. 1 of 2 Go to page. So we went to fire it up, crank but no start. Solution/Cause – Faulty idler pulley spring breaks, which throws out the timing. Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 1993 Mazda B2600i No spark or injector pulse. ScannerDanner 145,434 views. spark at all 4 cylinders. So we have disabled the vats, triple checked all earth grounds, have cranking 12v, tried different cylinders, have fuel pressure at rails, computer was put into to a different car to drive a car onto dyno and taken back out, any. Now this beast has been out for about 2 months and it returned with no injector pulse. Also, if I send ground to the injector from the ECU plug, the noid light illuminates. I have no spark or fuel pulsing when cranking. 3, motor has a miss so I checked and cleaned all injectors, changed the coil packs and now still have a miss in the number 2 cylinder. However, like larry explained the injectors will not pulse. Note that if you already have a fuel table dialed in, you will need to add more fuel in to compensate. Dodge Dakota No Start, No Fuel Pressure Testing by ScannerDanner. Mar 12, 2010. Registered: 15 Feb 2012. If I spay gas into intake, car will run all day. no spark,but have injector pulse,12v to coil, At some point during the month of August the Roadfly forums are going to become archive only. I have no injector pulse and truck will not start. Ive got a fully charged battery and a jumper on it, it just cranks and cranks. This could cause no spark or fuel. WTH! then checked to see if injectors are working. Page 1 of 2 1 2 Next > Sponsored By: Aug 6, 2017 at 4 Starts up and dies immediately with starting fluid. Still no injector pulse. The ICM and the distributor pickup wheel drive the signal to the ECM to ground the injectors. How to test fuel pressure, injector pulse and spark with basic tools - Honda by ScannerDanner. dstmsp03: 2003. With the intake plenum off, the weak cylinder’s plastic line can now be pulled out of the intake and the poppet valve placed in a container. 27 volts while cranking. 5 MSP Nov 14, 2010 #1 dont normally ask for help. ive tried 2 different ecu's and both of them have no issues communication with the car, vcds, and nefmoto. 91's/posi spring kit, harrop cover, 1 3/4 Kooks long tubes/catted mids, Corsa sport, Billet shifter, 5000K HID's lows/Fogs. There arne't too many things that will allow the ecu to spark and run the pump on but NOT pulse the injectors. ANd i take the injector out and test it, It spark fuel. The result will be the same, no injection pulse. Spark is great, new plugs and wires along with cap and rotor button. I am working on a 94 mastercraft with a throttle body injected 350. If the control module. How to test fuel pressure, injector pulse and spark with basic tools - Honda by ScannerDanner. No "Fuel Injector Pulse" can be caused by a faulty computer, wiring, or a computer. Changed ECU, cleaned grounds and used a jumper wire to create some new ones. Spark plugs are bone dry even after X time of cranking. This is the No Spark No Fuel No Injector Pulse Helppppp!!!- Jeepforum of a photo I get from the 1998 Jeep Grand Cherokee Fuel Pump Relay package. Next i checked for spark using a spark tester then spray carb cleaner in the Tb and it starts up long enough to burn off the cleaner. CrazyIan: Factory 2. what am i overlooking. spark but no injector pulse. I've even pulled fuel rail and hooked up a momentary switch to injectors going to ground. That would show a flicker if the fuel injector was pulsing, correct?. Checked for power to the coils and don't have anything on the middle terminal. 1994 chevy pick up, 2wheel drive, 1500 series. 5mS or only 1/3 of what is needed. I'm just wondering if anybody has encountered this. In a few seconds, the injectors would fill the throttle body!! Besides the either "Wide open throttle" or zero injector pulse, I also have no spark at coil, so no spark to distributor or plugs. Since that post I have wired in a different harness and checked all powers and grounds and I see no problem. vehicle has new distributor, fuel pump,fuel filter, plugs, wires, main relay, fuel. dash went out we put the car back together and i have no spark or injector pulse the grounds on the heads are in place new. - Just found this cannot be done on this site. No coil pulse, no injector pulse No coil pulse, no injector pulse. I checked for spark and for injector pulse. There are two so I believe they both supply a pulse to the ECU which then figures out timing and then pulses the injectors appropriately. Wiring is an absolute mess on this truck, but I need a trail fix to get me home. i have power to the injectors. - no start - no injector pulse - rough idle - misfire - starts and stalls - failed emissions Fix - replace ALL fuel injectors Tests shown - how to measure injector resistance at the 4 pin injector. ^Think what happens when you blow on something glowing red hot - more oxygen = more heat. I posted this a couple of weeks ago but stated some wrong information. The PCM is from a 98 Buick Regal GS. How to test fuel pressure, injector pulse and spark with basic tools - Honda by ScannerDanner. With no injector pulse and no ICM timing pulse it seems like the PCM is not getting some kind of input signal but what can I be missing? The crank position sensor is the common ground but it seems to be working properly. dave5950 · Registered. it's likely the opti. I have fuel pressure at the rail, fp works, I have spark. but I have a rpm signal on the scanner when cranking. Engine will hit on starter fluid, but not stay running. Should be 12v. I believe the Ecu is not getting the signal to ground each injector. You probably f'ed up the crank or reference sensors on the bellhousings when swapping. The fuel injectors are energized when their solenoids are energized (by applying a pulsed ground signal) by the ECU. Bike does not start. Followers 0. 2010 Chrysler PT CRUISER (VIN - 3A4GY5F94AT******) Part Numbers: Customer Report: Diagnostic Report: This vehicle has been tested several times and found to be faulty due to mecha. please I need help. You should still have 12v at the harness. It started with a spray of fuel to the air intake. Re: Vt V6 no injector pulse has spark by immortality » Fri Jul 05, 2019 8:17 am Try the DFI if you have a spare as the DFI controls the timing when cranking until the engine hits 400rpm (IIRC) and then the PCM takes over control of the ignition timing. No spark exists at the coil (replaced coil with new one no change). have no spark or injector pulse - Check the Crank sensor or the Ignition Module (and fuses) If the car does not start, establish the information required to pin the problem area down to one of the three guidelines listed above. The PCM has a few ground points near it, some are circuit specific, I would think the injectors would be, so make sure all the grounds near the PCM are clean and tight. The other thing to look at is how big of a pulse are you commanding. It is suitable for cars and light commercial vehicles with up to 5 l engine capacity and 312 hp engine power, the first installation in series production cars was 1998. There arne't too many things that will allow the ecu to spark and run the pump on but NOT pulse the injectors. On newer gasoline direct injection (GDI) systems, however, a NOID light is no help. 9 volts at the injectors. 1 of 2 Go to page. i have power to the injectors. Although on the CSFI ‘Spider’ type, you've got 6 or 8 separate fuel injectors, you are still able to test each one with the Fuel Injector Pulse. Fuel pump is working. Gen III - Speed Density VE Table and MAF Tuning Instructions with a Wideband O2 Sensor Create by 69lt1bird – Jeff Anderson 2 system is operating rich, long term fuel trim will compensate for the rich condition by decreasing the injector pulse width, and a negative long term fuel trim is indicated. No Injector Pulse MKIII Supra. 17 Injector Pulse Duty Output (Trip Computer For Fuel Usage Meas. Have replaced ICM(grey box on side of distributor0, no fusible link problems, key sends power to "coil"(black transformer looking item bolted to top of engine on drivers side from which wire goes to centre post of distributor). Tools Fuel Injection Pulse Tester Enables you to check cylinder balance by firing individual injectors in three different ranges: 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds, 100 pulses of 5 milliseconds. No Start Testing Basics - Spark, Injector Pulse and Fuel Pressure (Hyundai Santa Fe) - Duration: 54:21. The car makes it possible, but the driver makes it happen. I get spark at plugs but no pulse to the injector therefore no fuel and no start. on my 1995 engine i needed a msd "tack adapter",i think they. No Start, No Spark, No Injector Pulse (faulty crank sensor). ALLOSUN Injector Tester Auto Fuel Injector Tester 4 pulse modes 12V Diagnosis The tester can help diagnose injector problems,you can use it to test each injector individually to help idently stuck,leaking or burnt-out conditions. The new wiring diagram should really help. If there is no spark, or weak spark, verify the following: • 12 Volt switched ignition power to the coil. With the injector unplugged, if you apply voltage to this side it, it should "pulse" because the ECU should ground it. Typically the signal across the fuel injectors are monitored by a scope (train of pulses). While testing and diagnosing, we have an incandescent bulb (tail light socket and pigtail) connected to the injector pigtail. I have power at injector but no ground. Diagnosing a clogged injector is not always easy because the symptoms act similar to low compression or an ignition problem, such as a bad ignition coil, a broken spark plug wire, a bad spark plug. I believe the Ecu is not getting the signal to ground each injector. and i still have no fuel coming out of the injectors. The sensor in the distributor is the camshaft position sensor and it has nothing to do with fuel injector pulse width, or ignition spark. In all cases, you should choose speed density unless you have a good reason to do otherwise, and understand how this will change your tuning efforts. It has no spark and the injectors are not firing. That turns off the alarm system. i have power to the injectors. How to check fuel injector pulse using a noid light This is a awesome test because it can be done very fast using a very inexpensive tool called a Noid light. still engine. Won't start on starting fluid either. After pulling my hair out for a couple days i was led back to the crank angle after we used a friends scan tool. ordered ecm programmed to my vin # installed and performed passlock reprogram. Spark-no pulse. No pulse while in crank Like I said, the truck will start and run if we use a remote starter switch and injectors pulse. I have replaced the cam sensor, crank sensor, and coil. My cousin has an 2001 Jetta, auto trans, i think 2. No spark and no injector pulse. The additional ignition input #2 (VR2in on Ampseal pin #4) is taken from the injector driver 1 pulse width modulation (PWM) processor pin (PT2), and the second ignition output (IGN2 on Ampseal pin #11) comes from the Injector 2 PWM pin (PT4). Some coils have an internal resistor, while others rely on a resistor wire or an external resistor to. Please help! Please help! Every possible part I could test passed just wondering if it is an ECM problem?. The other thing to look at is how big of a pulse are you commanding. NRMA guy told me it was probably the crank angle sensor so I replaced it but still no start. Checked codes and got crank cam and O2 sensor. Engine will hit on starter fluid, but not stay running. This will also throw a code, so check those. Cranks- No Spark, No injector pluse, No codes New head, new timing components, it has been timed and I just replaced the cam position sensor. Discussion. Discussion Starter • #1 • 1 mo ago. Spark-no pulse. If there is no spark then check your sensors for loose connectors or broken wires or adjustment. I have checked all the firewall fuseable links. 2006 Nissan Maxima SL 3. still engine. Did you check the spark on this engine? If there is no spark as well, the pick-up coil in the distributor is the most likely problem. The car cranks fine, but there is no spark and it seems as though the injectors aren't spraying either. This tester fires individual injectors in 1/2-second increments in three different ranges which are 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds, 100 pulses of 5 milliseconds. Replaced distributor five months ago. 0L Turbo Powertrain (EJ Series Factory 2. via ignition module. My cousin has an 2001 Jetta, auto trans, i think 2. I checked my coils, they all have sparks. It seems that lack of spark inhibits the injector pulses and the fuel pump. I have limited data on Mercedes as I am using Mitchell Which has been of very little help. on what is going on I’m not getting spark and the injectors are not pulsing i don’t know where to go from here I. I have 12 volts to both injectors. Fuel injectors are usually powered directly by a fuse and then grounded by the engine computer. Share Thread. 3, motor has a miss so I checked and cleaned all injectors, changed the coil packs and now still have a miss in the number 2 cylinder. Seems to run OK if it starts. Fuel Rail Pressurization: When you first turn the key to the “on” position, the fuel pump will run for 2 seconds pressurizing the fuel rails. It's a 50-50 toss on that one though. Have spark, but no injector pulse with noid light. To start viewing messages, select the forum that you want to visit from the selection below. Please help! Difficult problem, could be something simple? I have a Nissan Sentra 99 that will not start, was running great before, checked fuel pressure, its great, theres spark in spark plug, all fuses and relays are ok, but no pulse to injectors, nothing at all. But you already knew that. The blank key worked well to start, and even unlocked. In a no-start situation, the first steps should be to check for spark, injector pulse and fuel pump operation (as noted above). No spark to distibutor. 1988 no injector pulse. You say you have no injector pulse or ignition I believe the ignition module has nothing to do with the injector but if the ECM doesn't know the engine is turning over it won't send out pulses. I appear to be getting no spark or fuel. No spark, no injector pulse Working on a factory 2004 Isuzu asender with the 5. 3L no spark-no injector pulse. Checked codes and got crank cam and O2 sensor. Well, I almost finished a swap without posting a bunch of questions up here. The crank position sensor shows rpm in vcds (200 rpm). I picked it up from a salvage yard in Wisconsin. This is an issue with a '95 LT1. ^Just a thought!. still engine. It has spark but no pulse to the injectors. Joined Apr. 1 answer & 0 cluster flash when you crank the engine? If so, you have an key based anti theft system issue. I have narrowed it down to no pulse single being sent to my injectors. In addition to any parameters of special interest, all data should be logged to disk. 0 MJ 5 speed. The car cranks fine, but there is no spark and it seems as though the injectors aren't spraying either. All fueses are good and there is power everywhere, but no injector pulse. Jump to Latest Follow 1 - 2 of 2 Posts. There arne't too many things that will allow the ecu to spark and run the pump on but NOT pulse the injectors. Hello to all I need help! I have 2005 nissan maxima SE 3. No Start Testing Basics - Spark, Injector Pulse and Fuel Pressure (Hyundai Santa Fe) by ScannerDanner. Checking the car out it has no spark on the plugs or the coil. I recently bought a used 2006 Frontier SE Crew Cab. What I do not have is the ground pulse to fire the injectors. Yes and its pin 20 and there is no pulse on that wire at the ecm or distributer. i am running out of patience with this car, i have spark, i have fuel at the rail, cranks and cranks but still won't start. no spark & no fuel = no start: Annoying Eric: Normally Aspirated Powertrain: 10: 11-29-2017 07:39 PM: 02 WRX, no spark, no injector pulse. as the cas has nothing to do with the physical conection to the injectors or spark. 0L Turbo) 2: 10-31-2010 03:13 PM: EJ20G Motor no fuel no injector pulse. SOS no injector pulse on the trail. i have traced down wires to see if anything eles was burned i noticed i am not getting RPM readings on tach. Show Full Signature 2003 Cobra - 2. Then take a look in the end of the exhaust cam to ensure that the key/interface in the cam isn't damaged. I found out I had intermitten injector pulse, about 1 time out of four. I also cleaned the terminals on the coil and checked between coil - and drive relay plug terminal 31, I got 14ohms, which seems really high, but I was also using 20 feet of speaker wire. So things to consider: If you have voltage on one side than the other side is being grounded out by the ECU in phase. They were all together on the key chain. My friend and I took the injectors on my 98 wrx swap out to test and clean them, re-instralled them and now it won't start. I will post an update next week guys. 7 has spark, has injector pulse, compression 02 tundra 4. Registered: 15 Feb 2012. My question is; is the ECM the one and only culprit if everything else is working? I'd hate to buy an ECM and find out that an inline fuse or something simple was at fault. it has power to injectors but no ground pulse. I have spark, but now we have finally discovered I am not getting any fuel into the cylinders. 10-08-13 08:10 PM - Post# 2389412 I've been looking at old posts on this issue for several days and am still stumped. rpg5553: Built Motor Discussion: 0: 10-22-2010 09:18 AM: No spark, No. Nope the RLTC cuts the injector pulse not the spark, hence the concern about running lean. but I have a rpm signal on the scanner when cranking. I went through the wire job on the new module and found out he had the crank signal and ground wires backwards. 5L the Engine crank over OK, but there is no injector pulse and no spark. 5-12 volts. 1 MS55 - 3 TA47 - 1 MS123 - 1 YR21(SR21) - 1 RX80 - 1 ST165 - 1 JZS160. With a bad crank sensor, you will still get spark, but it wont be sparking at the correct time or the correct cylinder. I have spark,fuel,fuel pressure,compression,and the timing belt is good. 2l standard trans. Mar 12, 2010. The MAXI injector on/off time is controlled via the pcm by pulse width modulation, which is basically the injector timing and fuel delivery is either shorten or longer base on inputs from the various sensors ( MAP, throttle position, temperature and engine load. Fuel pump is providing good pressure. I can't ever get spark or injector pulse. Driving Injectors This is an area that garners a lot of questions and confusion. Has signal in to ECU from ignition control module, have tested it and also been proven to be correct as there is spark. It turns over fine, has good compression, it is firing the spark plugs, the engine will run as you spray fuel in throttle body. I will post an update next week guys. 0lt 6 cylinder. 95 f150 no injector pulse keyword after analyzing the system lists the list of keywords related and the list of websites with no spark or injector pulse, all of. There’s fuel, spark and 12v at the injectors. I had the same problem i had spark but didnt have injector pulse, i then assumed i had spark then the crank angle would be fine so i went about testing the injection/wiring side of things. Re: No injector pulse when cranking. If the engine starts, where it would not start with all injector leads connected, the fuel pressure regulator is bad and should be replaced. I did read on another forum that a noid light won't illuminate with a resistor box wired in but I'm not sure I trust that logic. The sensor in the distributor is the camshaft position sensor and it has nothing to do with fuel injector pulse width, or ignition spark. I want to say the pick-up coil in the. I'm using an inline unkown brand fuel pump. I would suggest repeating those tests to confirm, and also check for 12V+ at pins #87 of the Main Relay (Red base). Another way to test the injector is to measure the resistance of every injector between the two terminals and compare it with the highest and lowest values stated in the injector datasheet; if the result outside the allowable boundaries, then change this injector. No spark to distibutor. I was really puzzled and started thinking the ECM was messed up. We were able to get a injector pulse and spark one time but have. 2010 Chrysler PT CRUISER (VIN - 3A4GY5F94AT******) Part Numbers: Customer Report: Diagnostic Report: This vehicle has been tested several times and found to be faulty due to mecha. PIP is the electronic module inside of the dizzy. I have also discovered for any one who is testing for injector pulse, the purple and white wire on the ignition module will send. (Engine would not start with starting fluid and no spark arcing from high tension coil lead to ground across a gap of approx 3 mm. If you have spark, just no injector pulse, make sure you have power to injector. No spark to distibutor. Part of the confusion is the difference between the injector driver, and the injector firing rate. The sensor in the distributor is the camshaft position sensor and it has nothing to do with fuel injector pulse width, or ignition spark. S call 951-672-8501951-672-8501. Top 1991 olds 98 no injector pulse Help! Posted: Thu Dec 09, 2010. The distributor problem and associated lack of spark did not show in the codes when I ran them. I've replaced the ignition control module and the wires to it. Also, if I send ground to the injector from the ECU plug, the noid light illuminates. Traced it to no spark and no injector pulse when the trouble occurs. We have narrowed it down to the fact that there is no injector pulse but cant seem to figure out the biggest question- WHY?!!?. It has new computer, new module. If you have spark, just no injector pulse, make sure you have power to injector. 1994 chevy pick up, 2wheel drive, 1500 series. _____ 2006 Chevy Monte Carlo SS. Hi folks, was hoping to fire up my ls3. I checked the ground from injector to computer and it ohm'd good. Spark-no pulse. 6 liter that has intermittent start issues. I pulled a spark plug and confirmed there's no spark. Remove one and only one fuel injector nylon tube from it's place on the intake manifold. Didn't test the gound on the coil yet. spark at all 4 cylinders. i have spark, it will run on brake kleen. I can't ever get spark or injector pulse. I have a 1992 Mazda 323 SE. The crank sensor can cause no spark and no pulse to the injectors, however, it would be the ground side of the injector harness that was missing. ?A while back, the car. I've had the same problem for a while now. But you seem to have comunication so that's a good sign. i have power to the injectors. Now this beast has been out for about 2 months and it returned with no injector pulse. Gas Stove Ignition Parts, find complete details about Gas Stove Ignition Parts, electronic gas igniter, electronic gas spark ignition, pulse ignition oven parts - Jinan Sinopts Energy Technology Inc. Injectors not pulsing. if power is being supplied to both injectors and coils. My 11 Second AU Fairlane. 2002 camry has no spark and no injector pulse. How to test fuel pressure, injector pulse and spark with basic tools - Honda by ScannerDanner. Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. Skech11536 · Registered. Engine cranks fine and fuel pump runs. Got spark and injector pulse but no start. On an E30 (3-series), the module is located next to the ABS control module (on 86 and later models, with ABS) to the left of the steering column, under the dash. but dont use your main one, the gas will ruin it. No injector pulse. If the pulse width is too wide, the coil will over-saturate and not build the strong magnetic field needed to produce a nice spark. Rewq246 · Registered. It started with a spray of fuel to the air intake then stopped straight away. I know there is fuel getting to the fuel rail and to the injectors and there is an electrical signal at the injectors reading 12v but is there a certain pressure that must be reached before an injector will fire?. Have replaced ICM(grey box on side of distributor0, no fusible link problems, key sends power to "coil"(black transformer looking item bolted to top of engine on drivers side from which wire goes to centre post of distributor). no start condition, have spark, no injector pulse/no gas. runs on 2 cylinders Getta scan done--may hav some wiring issues too--sensors-or injector driver in computer cud be bad----its almost 20yrs. No Start, No Spark, No Injector Pulse (faulty crank sensor). Spark was tested using an HEI spark tester and injector pulse monitored with a noid light. Driving Injectors This is an area that garners a lot of questions and confusion. Also, I did test by myself. This will also throw a code, so check those. Injector pulse with no spark is a power stage or coil. this isnt normal is it? did you pull. No spark or injector pulse; No spark or injector pulse (1997 Ford F-150) no fire or pulse. Module #2 and 3 give no fuel or spark. 5 engine I have spark but no injector pulse I have changed the hall effect switch, ignition module and ecm to no avail, I have also checked my wires going from injector to the ecm and all checked out. It seems that lack of spark inhibits the injector pulses and the fuel pump. Next i checked for spark using a spark tester then spray carb cleaner in the Tb and it starts up long enough to burn off the cleaner. Jump to Latest Follow 1 - 2 of 2 Posts. I have spark and fuel pressure but still no injector pulse. i have power to the injectors. I didn't want to bore you with the entire series of events so I left out what I felt wasn't needed to say. December 29, 2010. The injectors show to have power but no fire. Tach in +12V via two wires, one ignition power, one main. Joined Apr. Now it cranks, but won't start. I have a few problems. Jim Grant's Tech Tips ‘97 Chevy Astro, No Injector Pulse. Luckily the vehicle owner brought a second key for the vehicle, allowing the shop to clear the codes. Mazda 3 – No spark, no pulse. With the intake plenum off, the weak cylinder’s plastic line can now be pulled out of the intake and the poppet valve placed in a container. I can find no codes in the computer. The CKP (crank position) sensor runs the spark (via PCM), and maybe the injectors if there is no CPS. rpg5553: Built Motor Discussion: 0: 10-22-2010 09:18 AM: No spark, No. no spark or injector pulse. There was no fuel injector pulse. But injectors pulse works off of ground from ecmyou have to have the grounds at thermostat and intake or will not pulse injectors. I have fuel pressure, but no spark or pulse. I suggest you have someone read them for you. I had it back for three days then this morning went to leave and it wasn't starting. but i am stumped. When cracking engine, (testing with noid lights on spark and injector) systems get normal pulses, engine tries to start, then pulses stop. WTH! then checked to see if injectors are working. The PCM is not providing power due to a defective output circuit. [Problem:] This morning my 86 740 GLE (B230F) started and ran for approx. 3 EFI no spark no injector pulse May 21st, 2019, 12:57 AM Merc 4. Using a Fuel Injector Pulse Tester is the safest way to see if the entire assembly is bad on the CPI ‘Spider’ system (this is because this assembly only has one fuel injector solenoid inside). I first replaced the distributor because they were known to go bad, I checked and I thought it was bad but I was wrong. There arne't too many things that will allow the ecu to spark and run the pump on but NOT pulse the injectors. please I need help. put the pulse sensor over it. Compression is great, spark plugs are new and gaped correctly, coils are good out of a known working motor, injectors ohm out within spec around 12. The car cranks fine, but there is no spark and it seems as though the injectors aren't spraying either. It started with a spray of fuel to the air intake. If the coil pulse width is too wide, it will overheat and not pulse properly, with barely a spark present. I believe the Ecu is not getting the signal to ground each injector. As for the idle control valve, if the valve were completely closed, the engine may not start. Got spark and no fuel, spray some gas into the intake does it start and run till the fuel runs out? Check for fuel pressure, injector pulse, and the main relay again. this isnt normal is it? did you pull. "no" means it will not work with either, i. I'm making an assumption he does not have a volt meter to go poking around to confirm the ECM is powered up, so this is the only way I can test that. It is setup on speed density with an EVO MAP sensor.
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