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Thread: Rich idle on 2 bar, SD Only tune.

  1. 03-14-2014 #1
    JakeM
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    Rich idle on 2 bar, SD Only tune.

    Having a rich idle issue that I can't pin down. It wants to idle at around .7 lambda no matter how much fuel I take from the main VE table. It is also very rich on those areas at very low load and part throttle.

    This is a turbo 400, turbo 5.3L. That otherwise runs and drives just fine. Perfect at anything over light load but will not lean out at idle or very low load. Fuel pressure is also spot on. I have a few issues to work on but it's close everywhere else.

    Tune
    3-14-14 tested WOT and still paying with IDLE WOT and Part throttle are perfect.hpt

    Log
    log 2 3-14-14.hpl
    Last edited by JakeM; 03-14-2014 at 12:48 PM.
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  2. 03-14-2014 #2
    1slowbusa
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    Can you give more information about the car vehicle? Size injectors, intake, TB....
    2000 Camaro SS
    Polluter V2 Cam
    AFR 205 Heads
    Fast 102 Intake
    & More
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  3. 03-14-2014 #3
    robbyredneck
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    can you command lower with the scanner?
    04 6.0 silvy china turbo
    87 gn
    03 stroker evo ww
    00 ss camaro
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