Re: 01 Jeep Wj new pcm problem
Welcome to the garage.
The new PCM should be programmed with the SKIM secret code. Without this code, the engine will start, but shut down after a few seconds.
The programming need to be done with a DRBIII scanner. The stealer can do it, but most probably will charge you a lot for it. You could look around to find some local shop with the scanner.