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Thread: p0068 after 102 TB and ported snout

  1. #1

    p0068 after 102 TB and ported snout

    '12 LSA camaro

    First time doing speed density only since porting the snout, swapping in a 102, and going to a 5" intake. I'm getting P0068 (map/maf throttle correlation) as soon as I try to get into any power at all, like when taking on ramps. Tried disabling it but it still throws the code and kills the car. p0103 (maf high) still set to light on first error.

    As soon as that code pops, I get reduced power and it shakes like it's on 2 cylinders.

    Google hasn't been much help here, but I don't know exactly what I'm looking for now.

    I attached the current tune which is pretty much the same except I'm back to maf only, but when I go SD only, I fail the maf at 2hz and the dynamic airflow rpm limits go back to normal.
    Attached Files Attached Files
    '12 ZL1 - RPM 5", TSP 2" headers, Speed Engineering 3" header back, Dayco 8.66 lower/LPE 2.38 upper, ID1050x's with DSX aux kit and E, NGK TR8's, Taylor wires, 160* tstat, NW 102, self ported snout/blower, Stock unopened long block

  2. #2
    I was just pointed to the p0068 tables, which I had no idea existed. I'm messing with the delta tables now by bumping them in increments, and maxed out the vs rpm and ignition tables, since I'm far exceeding those limits.
    Last edited by madmikeismad; 09-03-2020 at 04:50 PM.
    '12 ZL1 - RPM 5", TSP 2" headers, Speed Engineering 3" header back, Dayco 8.66 lower/LPE 2.38 upper, ID1050x's with DSX aux kit and E, NGK TR8's, Taylor wires, 160* tstat, NW 102, self ported snout/blower, Stock unopened long block

  3. #3
    Senior Tuner
    Join Date
    Jan 2014
    Location
    Australia
    Posts
    1,978
    engine diag, airflow tab "airflow correlation" just set enable rpm to 8000 to disable it

  4. #4
    Honestly I can't remember now, but I believe it did. I was only messing with the vve tables in case my maf failed, it wouldn't blow up. I run maf only 99% of the time.
    '12 ZL1 - RPM 5", TSP 2" headers, Speed Engineering 3" header back, Dayco 8.66 lower/LPE 2.38 upper, ID1050x's with DSX aux kit and E, NGK TR8's, Taylor wires, 160* tstat, NW 102, self ported snout/blower, Stock unopened long block

  5. #5
    Advanced Tuner
    Join Date
    Feb 2018
    Posts
    824
    i had to disable that P0068 on my ctsv while tuning my VVE. otherwise my car went into limp mode