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Thread: 2020 jeep gladiator procharger kit

  1. #1
    Potential Tuner
    Join Date
    Apr 2022
    Posts
    2

    2020 jeep gladiator procharger kit

    I have a 2020 jeep gladiator, it was initially flashed with diablo that came with the kit. Long story short the tune was wiped and I no longer have the diablo tuner. I have been working on the tune with HPTuners but I keep getting error U1428 inaccurate engine torque received and it goes into limp mode. also c121c torque request signal denied, DASM pcm disable ecu and ABS disabled ECU. Any Ideas?

  2. #2
    Potential Tuner
    Join Date
    Nov 2021
    Posts
    5
    I am having this issue also after a cam swap. were able to clear the c121c ode?

  3. #3
    Tuner in Training
    Join Date
    Nov 2020
    Location
    Argentina
    Posts
    13
    Did you solve this? Post your stock file.