Results 1 to 3 of 3

Thread: TCS Patch Question

  1. #1

    TCS Patch Question

    E40 on a 2005 GTO

    If I write entire with the TCS Patch applied, is that considered a custom operating system? Does it make modifications to the OS itself?

    This is only for the TCS Patch. I understand that the Speed Density 2 bar modification is a custom OS.

  2. #2
    Either way, you can try to read a file with EFI Live to see if it will work. And if it doesn't, as long as you kept the original file from the car, you can just flash that one in, and write entire to bring it back to stock, and then EFI live should work. Try that.

  3. #3
    I do have the stock files. But I don't have a working interface.

    I do have a tech 2 that I can flash the stock calabration back if EFI live can't read it.