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LS1 Transplant

This is a discussion on LS1 Transplant within the Computer & Tuning forums, part of the LSx Technical Help Section category; I have just put an LS1 into a nissan patrol.All the wiring is done. We will not be running a ...

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    LS1 Transplant

    I have just put an LS1 into a nissan patrol.All the wiring is done. We will not be running a BCM.I am having trouble with communication. HP Tuner will not talk to the ECU. All wiring appears to be correct and we assume that it is because it is looking for a BCM. Can we fool it to believe that a BCM is present until we can cut it out? Or should we be going about this differently.

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    TunedbyFrost.com Tuner Frost's Avatar
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    Check out the ODBII power for power and proper wiring; HPT doesn't care whether there is a BCM or not.

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    Quote Originally Posted by Frost View Post
    Check out the ODBII power for power and proper wiring; HPT doesn't care whether there is a BCM or not.
    You are probably right. I just connected GM TEch II, it powers up but will not talk either.

  4. #4
    TunedbyFrost.com Tuner Frost's Avatar
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    You probably already have this, but... this is what you need to talk to the PCM.

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    Thanx guys. have rechecked my wiring and it all appears in order.May need to look deeper.

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    problem resolved. It appears that i had a dodgy earth. All good now. Thanks

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