No spark or fuel injector pulse

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  • Downshift-E30
    replied
    I have the cps that is mounted on bell housing. There is no sensor on the front of the crank. And I felt for it and no click at all. Gets fuel to the rail just the injectors are not being operated


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  • peterman
    replied
    Not talking about the bell housing sensor. CPS and spark plug wire pulse wire in the front of the engine.
    How do you know there's no pulse? Did you put a stethoscope on the injector?
    Also, the fuel return should be connected to the FPR on the fuel rail.

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  • Downshift-E30
    replied
    Yes for the first time trying to run and I believe it's supposed to be 960 with the bell housing sensor. I have flipped them but the grey connector marks the sensors


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  • peterman
    replied
    Did you try the Main relay?
    What were the ohms on the CPS? should be 500-540ish (pins 1 and 2).
    Did you flip the connectors to where the CPS and the plug wires under the intake manifold? This will give that problem although I think the fuel pump wont run while cranking if you did.

    Edit: Did it ever run? or are you trying to get it started for the first time.

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  • Downshift-E30
    started a topic No spark or fuel injector pulse

    No spark or fuel injector pulse

    Car is an 87 325e, fuel pump runs when cranking.
    Car has the flywheel for a jetronic e30 but with timing tab welded onto it.
    Checked crank reference sensor for ohms and Ac voltage
    2 ecus
    2 wiring harnesses due to first one being bad
    All fuses good
    Tab on flywheel still good. Plz help before I swap flywheel for stock


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