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Thread: 15 Hellcat limp mode at 5300rpm, DTCs, 19.5psi E85 ID1300

  1. #1

    15 Hellcat limp mode at 5300rpm, DTCs, 19.5psi E85 ID1300

    I ran into an weird limp mode situation while tuning a Challenger Hellcat auto trans.
    Car has ID1300, e85, upper and lower pulleys, woody intake and cat delete.

    Lamda is ~.85-.86 so far, trims at WOT are ~+3% timing hasnt been altered yet, airflow thresholds have been raised. I have adjusted both maf and ve tables playing with no results. I have played with the pcms calculation of actual torque, nothing. There maybe something im over looking.

    I go WOT from 2500 or 3000 and when i reach 5300rpm the throttle cuts, both 5th and 6th.

    I have seen the following DTCs while inhave been trying to figure the cause.
    P012B
    P012C
    P0EA7
    P1DD2
    U1424

    Hoping someone has had a similar snag and found a solution.

  2. #2
    Advanced Tuner
    Join Date
    Jul 2015
    Posts
    925
    can you post a tune and log?

    that's pretty lean even for E85. I'd pull timing out of it if with 19 lbs.

    Stock fuel system with a BAP?

    Are you tuning it with ANN off?
    Last edited by Jay@HAP; 06-14-2017 at 07:04 PM.

  3. #3
    Jay, stock fuel sys with BAP
    Still running the NN.

    The issue was the Max airflow table being to high. really that simple.
    Car made great power 920whp-930wtq.
    Some of those codes are permanent and cant be disabled but dont give a MIL. And they arent in the DTCs so I cant disable them.
    Thanks for offering you input bud.

  4. #4
    Witch max airflow table ?