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Thread: no injector pulse but no PCM error codes

  1. #1
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    Unhappy no injector pulse but no PCM error codes

    My V6 was running smoothly yesterday, then 20 minutes later would not start. It cranks over, and has a spark. Eventually find no injector pulse.
    The fuel pump is working. The imobiliser red LED has gone out. I checked fuses, swapped relays - no change.
    So check for error codes, only get 12. Any suggestions (apart from PCM dying)? I presume if crank angle sensor were defective, it should flag an error code.
    One thing, when trying to start, I hear a faint chirping sound in the engine bay. I never noticed this before.

  2. #2
    aussie4life11's Avatar
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    woteva's Avatar
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    Quote Originally Posted by aussie4life11 View Post
    CAS doesnt always show an error code. theres no after market imobiliser?
    If CAS was faulty, there would also be no spark.

    Just had a quick look at the circuit and there is an EFI Relay and Fuse to check first.
    http://woteva.tk/

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    CALAIS94 is offline Banned
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    JJ's VR's Avatar
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    I have a vr v6 too, and exactly the same thing happened to me. All I had to do to rectify problem was turn ignition on, leave it on for 2 minutes then start it (without turning ignition off then back on) My problem was memcal related.... Good luck.

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    Quote Originally Posted by BlackVXGTS View Post
    Check EFI earth wire behind drivers side kick panel.

    Which one is it? There are a million wires behind the kick panel.

  8. #8
    delcowizzid's Avatar
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    i would go for a cas or a dfi under the coils first they can go and you still get spark but the ecu doesnt get a signal
    I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
    tabbacco is still my favorite vegetable


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