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Thread: Idle lean but LTFTs want to pull more fuel???

  1. #1
    Platinum_Member The White Rabbit Diesel's Avatar
    Join Date
    Mar 2011
    Chattanooga, TN

    Default Idle lean but LTFTs want to pull more fuel???

    So I'm helping a friend dial in some injectors on his Evo X. He has DW800cc injectors. His AFRs are around 15.6-16, so basically a whole point off. But after cruising around for a bit and logging his LTFTs still want to pull more fuel. -6 for cruise and -8 for idle... Any idea why? Does he need to rescale his MAF?
    The White Rabbit
    Evo VIII - Build in Process - 2.4LR w/ T4 6766

    Evo X w/ FP Red - DailyDriver
    455hp/365tq VD on 93oct - Self tuned

  2. #2
    Silver_MemberHigh on Boost project_skyline's Avatar
    Join Date
    Jun 2008
    Grand Junction


    Bad o2 sensor.

  3. #3

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