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Thread: Pe enrichment wide open maf tuning

  1. #1
    Tuner in Training
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    Pe enrichment wide open maf tuning

    Having an issue with wide open maf tuning. Adjusted mad curve 2x and no change to afr. Staying around 16. Had a fuel pressure issue but fixed it. No change. 99 c5 with ls3 with stage 3 cam, headers. I dont know how to attach log file or tune
    2008 corvette. Ls3 with tsp stage 3 cam, American racing headers, catless x pipe, vararam snake charmer sc1r intake.

  2. #2
    Senior Tuner Ben Charles's Avatar
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    What injectors?? If stock then it?s bc your out of fuel...

    What?s IDC? If it keeps going up with no change then there ya go

  3. #3
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    In the bottom right there is a button to click that says ADVANCED click here, then click ADD FILES, " browse to you log file and double click it, then click UPLOAD, then look slightly below that were it says INSERT INLINE and click that and then DONE.

    Doug...

  4. #4
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    Files. Maf curved adjusted and no change. Log is of adjusted maf curve
    2008 corvette. Ls3 with tsp stage 3 cam, American racing headers, catless x pipe, vararam snake charmer sc1r intake.

  5. #5
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    Ls3 stock injectors. Due just fine in identical motor in my c6
    2008 corvette. Ls3 with tsp stage 3 cam, American racing headers, catless x pipe, vararam snake charmer sc1r intake.

  6. #6
    Senior Tuner Ben Charles's Avatar
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    Ok ls3 injectors fine, thought you had 99 ls1 injectors

  7. #7
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    Updated ls3 injector , changed a few more pe enrich tables but nothing changes anythibg
    2008 corvette. Ls3 with tsp stage 3 cam, American racing headers, catless x pipe, vararam snake charmer sc1r intake.

  8. #8
    Tuning Addict 5FDP's Avatar
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    What if the wideband sensor is bad?
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  9. #9
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    Quote Originally Posted by 5FDP View Post
    What if the wideband sensor is bad?
    Look at his narrow bands, the wideband is right.
    2010 Camaro SS M6. Stock Bottom End, Heads/Cam/Intake/Headers/Exhaust.
    2005 Silverado RCSB. Forged 370 LQ9/Borg-Forced Inductions T6 S484/Jake's Stage 4 4L80E with D3 Brake/4WD.
    2023 Durango Hellcat

  10. #10
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    How's your fuel pressure?
    2010 Camaro SS M6. Stock Bottom End, Heads/Cam/Intake/Headers/Exhaust.
    2005 Silverado RCSB. Forged 370 LQ9/Borg-Forced Inductions T6 S484/Jake's Stage 4 4L80E with D3 Brake/4WD.
    2023 Durango Hellcat

  11. #11
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    oxygen sensors can not read raw fuel. put it in SD mode and see if the o2's react at wot.
    The most hated, make the most power.
    93 Ranger. 5.3 D1X. 1069hp.