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06 E250 no spark new crank sensor injector plugs constant grounded

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I have fixed a few chevys that had one injector with a constent ground by replacing the computer. i would replace the computer.

Posted on Jan 04, 2013

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Posted on Jan 02, 2017

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SOURCE: car has no spark or injector pulse(new ecm,crank sensor)

Check the fuse for the injectors, some vehicles have the injectors and coil running on the same circut, at the same time check the fuse for the ignition.

Posted on Jan 30, 2009

  • 7 Answers

SOURCE: crank but no start,no spark, has no pulse to

check crank sensor rear of engine.

Posted on Jan 16, 2010

  • 6 Answers

SOURCE: no spark,new coil still no spark,crank sensor? 95 dodge ram 5.2 l

Could possibly be the ECM or computer it may be the crank sensor. The crank sensor is probably the cheepest so I would start there. Since it sound like you may be throwing parts at this, since you cant drive it to have a diagnostic done and you can't have the crank sensor tested, I would buy a used one from a junk yard to see if that is the problem to save a little money since you may have to buy somthing else if that does not work. Good luck

Posted on Feb 22, 2010

ftw1952
  • 10319 Answers

SOURCE: 2001 honda civic ex,wont start, no injector pulse,

Injector pulses are sent from the engines computer. Have that checked out

Posted on Apr 07, 2010

reisdos
  • 1297 Answers

SOURCE: 99 Chevy Lumina won`t start

do mean that the plugs are firing even though the engine is not cranking?

Posted on Apr 24, 2010

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Hi. I have 2006 VW Jetta 2.0 TDI .I don't know why my car injectors socet hasn't got power electric? I changed Crankshaft sensor I changed camshaft sensor I changed injectors wiring harness.


Those sensors wouldn't affect power to the injectors.

You need a voltmeter, it's an electrical problem, so you need a digital volt/ohm meter (DVOM), or also called a multi-meter, and digital because many car circuits that are computer related operate at very low voltages or power demands, from milliamps to thousands of volts, like the ignition delivers to the spark plugs. So you buy a cheap multi-meter, then you also need a wiring diagram for your car to see how the fuel injector circuit works. but start there where you plugged in the new injector harness.

You are looking for power to the injectors, with key on. The injector harness has 8 wires; each injector has a power wire and a ground wire, so 4 of the wires in the harness should have power. At least on most American cars, the injector works by having the ecm control the ground for the injector . The power is constant. It is only when the ecm momentarily internally grounds the injector circuit that the injector fires. On your VW, the injector power wires and ground wires both go to the ecm.

Nov 25, 2016 | Volkswagen Jetta Cars & Trucks

2 Answers

I have a 2011 cruze 1.6,i have a missfire,have changed the plugs to no avail still missfireing,any help would be appresiated thanks


bad injector--bad coil --if misfire is not a constant cylinder than fuel pressure cam sensor/crank sensor and such

Jun 20, 2016 | Cars & Trucks

1 Answer

Wont start. it has injector pulse but no spark


is there power and ground to the coils?

If there is injector pulse than the crank sensor has to be good. Injector pulse and spark are both calculated off from the signal from the crank sensor.

Checking for power and ground to the coils is a good place to start. If that checks out than either there is a wiring issue in between the PCM and the coils or possible the PCM has failed.

Nov 20, 2015 | 2001 Pontiac Firebird Trans Am

1 Answer

I have power to the coil and to the injectors, but no spark to plugs.


No year, make or model. The ECM controls the spark by grounding the coil/s. It uses the crank sensor to determine the spark to cylinder needing fire. No fire would point me to the crank sensor and wiring to it.

Nov 30, 2014 | Cars & Trucks

1 Answer

1998 mitsubishi mirage winding over but won't start I have plenty of spark at plugs I have fuel at the fuel rail .I have power at injectors .should power at injectors pulse when cranking ?


Injectors fire when grounded. The power should be constant.

However, if its not turning over and just cranking, make sure your injectors and plugs are connected to the right cylinder. Also, check your plugs for moisture after cranking. If the plugs are wet, then that cylinder isn't firing. If they are dry and hot, maybe they aren't getting any fuel. Has the car sat for a while? When was the last time it started?

Nov 28, 2014 | Cars & Trucks

1 Answer

What does it mean when u have no pulse in the injectors and spark plugs in a 2002 Chrysler 300M


The pulse is the a ground that flashes on and off real quick. It's what fires the injectors and coils. The anti theft will also shut that off. U may try unlocking both doors with the key. That turns off the alarm system

Apr 19, 2013 | 2002 Chrysler 300M

1 Answer

No power to the injectors



No injector pulse at injectors:
a) check fuses
b) use scan tool to read RPM at PCM while cranking. Ask question specifying RPM PID data.
c) crank sensor/cam sensor/ign. module/wiring fault
d) stuff not plugged in properly
4) check fuses
5) dead PCM note PCM pulses injector ground based on sensor input, power is constant from ignition
how are you testing injectors theres something called a noid light auto parts store let you use them free you have to test it on the injector itself what did you car do before it died does it turn over but not start

Dec 03, 2010 | 2002 Pontiac Grand Am

1 Answer

96 vw jetta 2.0l will turn over but will not start


I had a problem like this on a 1997 VW Jetta 2.0L. I suggest you obtain a multimeter, a gas pressure gauge, and a used injector from a junk yard. You need to find if the car has spark if it is getting gas and if the injector is firing. Plug a used spark plug into say # 4 spark plug wire and ground end against the manifold or other ground. Have someone crank the engine and see if there is spark. If there is spark then disconnect the electrical connector and plug in the used injector and hold in your hand. Have someone crank the engine and if it clicks as the engine revolves the injector is firing. Now if you have spark and an injector that clicks then put the pressure gauge in the upper line going to the injector manifold. Use a T so that the fuel can still flow into the manifold. If these three things check out. You need to also verify the engine is timed correctly and the timing belt did not slip a few teeth. I had a problem with my crankshaft sensor. I bought a new one and although I was getting about a .3 volt ac signal, I still had no spark at spark plugs. I wound up getting another new crankshaft sensor and read 3 volts ac from the new sensor. I then had good spark Hope this helps

Mar 28, 2009 | 1996 Volkswagen Jetta

1 Answer

Stalls when hot. have spark, fuel pressure and injector pulse. crank no start


Four things you need to have combustion - Spark, Air, Fuel, and TIMING. I would look into the crank position sensor wiring. This would effect the timing. Then no matter how much spark and fuel you have, it will not start. If the crank position sensor goes out, it will die while you are driving it, but it that sensor goes bad it will not start back up. But if there is a back connection in the wiring especailly on the ground side, the the resistance will build up when the vehicle get hot. Which could cause it to make it seem like a fault has occured in CKP sensor. A scanner might catch a code for this. A good scanner that can graph will be the real way to go to know for sure.

Aug 21, 2008 | 2003 Ford E250

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