Results 1 to 4 of 4

Thread: reduced power p2128

  1. 02-13-2011 #1
    TimC
    TimC is offline
    Tuner TimC's Avatar
    Join Date
    Jun 2009
    Location
    Near GR, MI
    Posts
    198

    reduced power p2128

    Car is a 2007 STS-V and my tune is attached. I assume it's the throttle tables that I played with. Another weird thing is that the trans temp started climbing as soon as it went into reduced power mode. I am not sure if that was related or not. The trans usually runs around 120 degrees and it went up to 150 in two miles and up to 180 2 miles after that. I flashed back to stock and cleared the code. The trans went back down to 120 once I got on the highway. I never felt any slippage and it shifted fine even in reduced power mode.
    1971 Corvette-LS3 swap with custom cam. Stainless headers and sheet metal intake built by the owner. 442rwhp.

    2007 STS-V-Billet Precision 67mm turbo swap. 563rwhp@15psi.

    1991 Camaro-6.0 swap with LS6 heads and custom cam. Headers and other swap bits fabricated by myself (wife's car)

    Reply With Quote Reply With Quote
  2. 02-14-2011 #2
    BERSERK
    BERSERK is offline
    Tuner
    Join Date
    Jun 2010
    Posts
    65
    check your Pedal sensor...
    Reply With Quote Reply With Quote
  3. 02-25-2011 #3
    TimC
    TimC is offline
    Tuner TimC's Avatar
    Join Date
    Jun 2009
    Location
    Near GR, MI
    Posts
    198
    It happened again and did not go away this time. I tested the pedal and it seemed fine so I checked into wiring. There were some smashed wires on my harness near the ecu. The ecu is mounted in front of the left front tire so the wiring is prone to damage. I fixed the two bad wires and the problem has not come back.
    1971 Corvette-LS3 swap with custom cam. Stainless headers and sheet metal intake built by the owner. 442rwhp.

    2007 STS-V-Billet Precision 67mm turbo swap. 563rwhp@15psi.

    1991 Camaro-6.0 swap with LS6 heads and custom cam. Headers and other swap bits fabricated by myself (wife's car)

    Reply With Quote Reply With Quote
  4. 02-26-2011 #4
    IDRIVEAG8GT
    IDRIVEAG8GT is offline
    Senior Tuner IDRIVEAG8GT's Avatar
    Join Date
    Aug 2010
    Location
    Roswell, N.M.
    Posts
    1,956
    Quote Originally Posted by TimC View Post
    It happened again and did not go away this time. I tested the pedal and it seemed fine so I checked into wiring. There were some smashed wires on my harness near the ecu. The ecu is mounted in front of the left front tire so the wiring is prone to damage. I fixed the two bad wires and the problem has not come back.
    YAY!
    Gray Ghost- The abomination. 2007 Chevrolet Silverado CCSB. 98mm turbo, nitrous, 428LSX, Rossler 80E with a brake. Finally finished. 23 psi, no numbers, Slow as hell.

    PBM G8- Aluminum 364, twin Precision 67/66 turbos, 6L90 trans swap, CTS-V/Vaporworx fuel system, slowly making progress.

    Dads 2011 CTS-V- Stock bottom end, stock heads, LS9 cam, pullies, ported blower, ported TB, D3 goodies, and lots of nitrous.
    618/618 motor
    906/862 spray

    Caterpillar 50 Forklift- Duramax swap
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »