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Thread: Pcm ground

  1. #51
    LTX Member


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    May 2019
    Name
    DARREN BRANDON
    Vehicle
    1983 jaguar xj6
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    47

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    I have been watching the playback a few times, is it normal of the 12 volts ignition to drop to zero while cranking?? Seens a bit odd..

  2. #52
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    Name
    DARREN BRANDON
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    1983 jaguar xj6
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    Another update.. I found that the circuit in had the 12 volt switched for pcm into inside car drops voltage when starter engaged, so I connected direct to battery and now no longer Drop to zero
    Now I have a dtc 41 ignition control circuit open. The dropping of 12 volts explains why spinning opti by hand was giving me everything, but when cranking i had no pulsing at icm.. now to figure out the 41

  3. #53
    LTX Member


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    May 2019
    Name
    DARREN BRANDON
    Vehicle
    1983 jaguar xj6
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    Shes alive!!! Whilst testing agin she fired up... scared the crap out of me.. open exaust.... lol

  4. The Following User Says Thank You to Darrenmb For This Post:


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