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no injector pulse but no PCM error codes

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by jeepster, Mar 6, 2012.

  1. jeepster

    jeepster New Member

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    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. aussie4life11

    aussie4life11 Keep It Simple Stupid

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    CAS doesnt always show an error code. theres no after market imobiliser?
     
  3. woteva

    woteva NEED 4 SPEED

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    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.
     
  4. BlackVXGTS

    BlackVXGTS Well-Known Member

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    Check EFI earth wire behind drivers side kick panel.
     
  5. CALAIS94

    CALAIS94 Banned

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    probs a flat battery.
     
  6. JJ's VR

    JJ's VR VRHLDN

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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.
     
  7. GILLO

    GILLO New Member

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

    delcowizzid on holiday

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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
     

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