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Thread: No longer need

  1. #1
    Potential Tuner
    Join Date
    Jun 2019
    Posts
    5

    Gen 4 tune with 4l60e with NO ISS

    I have a Gen 4 swap, somewhere along the way through lack of knowledge I ended up with a 04 4l60e without the ISS sensor. Ive tried some stuff Ive read on here but havent had any luck getting everything to work all at the same time.

    At this point Im not sure if I have another issue or if the two or related but the two codes I have are P0717 Input/Turbine Speed Sensor A Circuit No Signal and P0741 Torque Converter Clutch Circuit Performance or Stuck Off. The TCC will lock up fine but only for a short period, a mile or two and then throw the code while the tcc duty cycle falls to 0 and will no longer lock up until cleared. I assume that the TCC is messed up from lack of an ISS signal.

    What Im trying to figure out is if there is any way to get everything happy on the computer side without the ISS signal. So far everything I have tried has failed and Im trying to avoid changing the transmission.
    Last edited by sprint_9; 10-09-2019 at 09:34 PM.