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Thread: MAP won't change

  1. #1
    Tuner in Training
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    Jul 2010
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    MAP won't change

    In my latest log, my MAP stayed at 92.0 the entire run. Is this a sensor issue, or something in cfg?

  2. #2
    Advanced Tuner umrjmac's Avatar
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    May 2010
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    Lenexa, KS
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    301
    For my car, anyway, MAP is Manifold Absolute Pressure (SAE), not Manifold Air Pressure. And it should log in kPa or psi, not volts
    Kenne Bell Supercharged 2003 Corvette Z06

  3. #3
    Senior Tuner Frost's Avatar
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    Jan 2006
    Location
    Richmond VA
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    1,950
    definitely a sensor/wiring problem there. I'd lean more towards sensor based on the data available but I'd checkout the wiring before I spent the coin.
    Steve Williams
    TunedbyFrost.com


  4. #4
    Tuner in Training
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    umrj-I logged both air pressure and absolute pressure because I wasn't sure which to use. It's the Kpa that isn't changing.

    Frost- I have to run a new vacuum line for my heater controls, so while i'm in there I check the wires. How do the rest of my numbers look? The car is running smooth and strong!