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Thread: Iat red at startup - High LTFTs

  1. 04-05-2007 #1
    xstang
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    Iat red at startup - High LTFTs

    I was doing some Fast intake testing (ported vs unported) and something went wrong. The only other thing that was changed is the idle from 650 to 800...

    Soon as I start the car, the IAT will turn red and the LTFTs will slowly climb to the 20s... I figured it had to be an exaust leak because it was thinking the car is lean.... I took it to an exhaust shop today and I was told that I do not have any header/exhaust leaks... Any idea what might be wrong...?

    I'm very new at this stuff, so bear with me...
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  2. 04-05-2007 #2
    5_Liter_Eater
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    Bad IAT sensor or harness?
    Bill Winters

    Former owner/builder/tuner of the FarmVette
    Out of the LSx tuning game
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  3. 04-05-2007 #3
    EC_Tune
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    Air leak between the MAF and the heads. Fast intake may be leaking. Very common.
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