Thread: Not starting- no spark, no fuel pump

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  1. #1 Re: Not starting- no spark, no fuel pump 
    GTX Level Member 02BlueGT's Avatar
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    If I remember correctly, the fuel pump turns off after 5 seconds if the engine isn't running, It judges if the engine is running by the signal from the CPS(through the PCM i Believe). So check your CPS and all the wiring to it cause that would cause the pump to run for no more than 5 seconds and no spark

    Hope that helps

    Edit, or also possible, failed ICM wont let the CPS signal through to the PCM (CPS signal runs through the ICM to get to PCM) thus causing fuel pump to stop running and no spark(from failed ICM)
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  2. #2 Re: Not starting- no spark, no fuel pump 
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    Quote Originally Posted by 02BlueGT View Post
    If I remember correctly, the fuel pump turns off after 5 seconds if the engine isn't running, It judges if the engine is running by the signal from the CPS(through the PCM i Believe). So check your CPS and all the wiring to it cause that would cause the pump to run for no more than 5 seconds and no spark

    Hope that helps

    Edit, or also possible, failed ICM wont let the CPS signal through to the PCM (CPS signal runs through the ICM to get to PCM) thus causing fuel pump to stop running and no spark(from failed ICM)

    Where is the ICM located? I am used to them being at the coil pack, but can't find it.

    Going to take out the icm and test it, as it is 80$, and if it is good, change the cps for 25, and see if that helps.

    There is no fuel pressure in the line, making me wonder if it is even coming on for 5 sec.

    Thank you for the help.
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