Well, the missing parts would be why it runs rough. They use the signals from the sensors in front and behind the converters to control the fuel mix. With them missing it's probably running in some version of open loop and that isn't intended for good operation, more of a limp mode.
The speed sensor missing also doesn't help. As for it being the neutral switch, nope that is all a part of the shifter's position sensor that tells the PCM what gear you are in, no other neutral sensor on it that has actual circuitry.
Braided ground sounds like a chassis ground but not in that location.
Sunday, May 29th, 2022 AT 11:13 AM