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Thread: Tuning GenV Viper - Codes issues - rev limit 2500rpm

  1. #1
    Tuner in Training
    Join Date
    Oct 2011
    Location
    So Cal
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    Tuning GenV Viper - Codes issues - rev limit 2500rpm

    I need some help indentifying an issue with my Viper.

    I keep getting the below codes, and due to that, I can rev it beyond 2500Rpm, and it feels like it has a miss fire when I take my foot off the throttle.
    it idles OK though.

    the car had a complete replacement of wiring loom and due to damaged stock one. I have installed a twin turbo on it, and yet to start tuning. cant figure it out

    0x7E8: P0037 - HO2S Heater Control Circuit Low (Bank 1, Sensor 2) (Pending, Permanent)
    0x7E8: P0057 - HO2S Heater Control Circuit Low (Bank 2, Sensor 2) (Pending, Permanent)
    0x7E8: P0531 - A/C Refrigerant Pressure Sensor A Circuit Range/Performance (Pending)
    0x7E8: P0533 - A/C Refrigerant Pressure Sensor A Circuit High (Pending)
    0x7E8: P2282 (Pending, Current, Permanent)
    0x7E8: P2610 (Permanent)

    I am getting new O2 sensors for the above code, and awaiting to see if these codes will disappear.

    Attach is a log of the idle and revving it where it hits 2500rpm only
    Attached Files Attached Files

  2. #2
    HP Tuners Owner Keith@HPTuners's Avatar
    Join Date
    Sep 2002
    Location
    Chicago, IL
    Posts
    6,397
    Looks like you still have a wiring issue.

    I helped trouble shoot a local Viper. It kept cutting out at high RPM on the race track, going into limp mode. We thought it could have been a tune issue, then corroded throttle bodies, turned out the engine harness was bad. Replaced the engine harness and the car was rock solid.
    We got this guy Not Sure, ...