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    Re: GM 3 bar MAP scale constant / multiplier

    Yes, this....
    But also you need to look at throughout the range.
    So if there is small error near 0psi, but greater error at 30psi, then should be able to use the multiplier.
    If it was off by 1-2...
  2. Replies
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    6,254

    Re: GM 3 bar MAP scale constant / multiplier

    What are they set at stock? 0, & 1?
    I checked my MAP reading some time ago with a known pressure and mine was off also.
    Sounds like this could help calibrate the MAP, which would be nice to know...
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