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IAT causing the wacky fuel trims and afr?

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  • IAT causing the wacky fuel trims and afr?

    Screenshot_20210705-171650.png

    Screenshot_20210630-055445.png

    Curious why the long ft stays in the red when it's 115 outside but only at idle. Anything above 1% on the tps and it's normal. Runs fine, just never saw red before the summer heat arrived. And yes, 167 is normal at idle, that's with the factory snorkel pulling air from in front of the radiator. The IAC difference is with the a/c on and electric fans spinning.

    Last edited by Heatsoaked; 07-07-2021, 02:53 PM.

  • #2
    Because the Calibration map does not get modified. Due to the fact Self Learn doesn't start till 1200 RPM.

    Or put another way:
    You are using a slightly Rich Calibration map.

    Anyway.
    It's the Short Fuel Trim you should only really be keeping a eye on.
    In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
    https://forums.edelbrock.com/filedat...?photoid=42773

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