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No injector pulse

I have no injector pulse, i was told this car doesnt have a module, is this correct? what sends the pulse to the injectors on the 2002 dodge stratus 3.0 6 cylinder

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  • Adam Easevoli Jan 15, 2013

    the fuel pump works and there is spark at the plug and the injector has power and ground it just doesnt have a pulse, on this particular car 2002 dodge stratus what sends the pulse to the injectors the control module, cranckshaft position sensor or the computer

  • montehammons Jan 17, 2013

    The computer grounds the circuit momentarily, causing the pulse. Crank sensor is for spark timing. The computer gets information from cam position sensor to determine injector timing and duration. Diod you get the blinking light when probing ground terminal, with testlight lead on positive post, and while cranking engine over?

  • Adam Easevoli Jan 18, 2013

    no there was no blinking light just a steady light

  • montehammons Jan 18, 2013

    Well, Adam. being it's an '06 car, I may have to bow out. It may be that your injector circuit is not as I described, one would have to check a wiring diagram of the engine controls, to see how the injector circuit works on your car If it is as I described, you have a bad computer. But if your set-up is different with somehow a pulse delivered to injectors that are constantly grounded, then I am at a loss Either find a wiring diagram to check, or post your question again here for another contributor to try and help you. Lets see, you do have a steady light on the power circuit with key on, and you have a steady light on ground circuit, when putting voltage to ground terminal and cranking car... If I got that right, it sure sounds like computer malfunction, but better get a second opinion, given I don't know your wiring diagram. Good luck, guy, sorry I can't help you more.

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Posted on Jan 02, 2017

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johnny5846
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SOURCE: no injection pulse

looking at the schematics, well the PCM controls the pulse width to the injectors , BUT , there is a injector coil fuse , its #2 in your kick panel fuse box , a 20 amp , check it , sure hope that fix ya . that would be sweet .

J5

Posted on Jan 15, 2009

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SOURCE: 89 s10 2.5 has fuel and fire injector has power but no pulse

injector pulse is just controlled by the ecm or computer as some would say,u said u replaced wires? did u have a fire or melt wires? ecm is known to go bad on these,had a few of these trucks back in the day.

Posted on Feb 16, 2009

  • 383 Answers

SOURCE: Little to no injector pulse only when starter is engaged

95-97 Maximas had a problem where condensation from the A/C would accumulate in the a/c evaporator case from the drain becoming restricted or blocked, When this would occur, condensation would drip onto the ECM and a problem would develop with misfire and/or starting. I would look at the ECM where the harness connects to it for corrosion problems. If you find it, there is a chemical spray which can be used to clean the terminals and/or you can clean them, although it is time consuming and difficult to due because of how small the terminals are. After things are cleaned up, lightly coat the connections with a dielectric grease. This will prevent electrolysis.I believe you can buy these at Radio shack and possibly at an automotive parts supplier.
Also a drop in voltage during the cranking phase will cause a weak spark. Your ignition is what pulses the injectors. It takes a minimum of 9.6 volts, but ideally you want at least 10.5 or more during the cranking phase if you want to get a spark worth anything. Check the voltage on the primary side of the coil while cranking the engine.
I'll watch to see if things work out for you, let me know. ....mybunkey

Posted on Apr 18, 2009

  • 1 Answer

SOURCE: no injector pulse but power to injectors good fuel pressure good

did you disconnect the battery before you welded the exaust. other wise the ecu has had it

Posted on Aug 03, 2009

  • 89 Answers

SOURCE: I have a 2006 Dodge stratus. It has a misfire on #3 cylinder.

You might try running a compression check ?

Posted on Feb 25, 2010

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