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Thread: After two weeks sitting, tune is way off

  1. #1
    Senior Member
    Join Date
    Apr 2009

    Default After two weeks sitting, tune is way off

    I had my tune dialed in to LTFT -5 to 2 througout the whole range. Now after not driving the car for two weeks due to the rainy Atlanta weather, the tune is show LTFT in the area of 10-15.

    It's about 15 degrees cooler now, but can that make that much of difference?

    Is it possible my O2's are reading different then when I was driving it every day and tuning it? Can sitting for a couple weeks make it read real lean?
    2001 Corvette Z06

  2. #2
    Junior Member LM7Tuner's Avatar
    Join Date
    Sep 2009


    IDK about that, but after I let my car sit for 2 weeks because I was working on it, it ran real rich when I started it up.

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