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Thread: how to add fuel?

  1. #1
    Junior Member
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    Apr 2005
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    Default how to add fuel?

    I raised the numbers on my ve table but it don't seem to do much to my afr. I have a lc-1 and it says my afr is 16 t0 1 ish. When I add fuel with the bidirectional the motor likes it and the afr drops but the it gets really rich at low rpm. I'm working on a 99 trans-am the I just put a 402 w/stage 3 patriots and a 224 cam. What am I missing or should be doing?
    \'99 SS Camaro #3789 6 speed ls1 12.6 @ 112.8 1.93 60\' .......now crate ls6 417 rwhp & 395 rwtq 10.9@129.8 \'03 2500HD ecsb 4x4 6.0, 4:10, locking diff, UPD, desreened maf 16.1@ 86

  2. #2
    Lifetime Member GMPX's Avatar
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    13,148

    Default

    Running with or without the MAF?.

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
    Junior Member
    Join Date
    Apr 2005
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    Default

    with maf
    \'99 SS Camaro #3789 6 speed ls1 12.6 @ 112.8 1.93 60\' .......now crate ls6 417 rwhp & 395 rwtq 10.9@129.8 \'03 2500HD ecsb 4x4 6.0, 4:10, locking diff, UPD, desreened maf 16.1@ 86

  4. #4
    Lifetime Member
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    Jul 2005
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    Default

    Light throttle it's in closed loop and running on the LTF trims.

    The object is to get the actual AFR to match the Commanded AFR.

    The VE table is doing almost nothing with a maf.
    You need to play with the maf calibration. table B5001.

    If you go to far it will throw a dtc relating to maf map comparison or similar.

    Do a search there is a post with a how to and some maps so you can autotune the maf.

    Works wonderfully
    \"You Can Never Have Enough Horsepower\"

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