Dodge Repair Questions? Ask a Mechanic for Answers ASAP
At this point you will need a scantool such as the DRBIII I use here at the dealership to see if the PCM says "Ok to start" or "Denied". If it has a gray headed key this can not be bypassed..
I hope this helps,
So the engine stays running for a minute then stalls? Will it start right back up and run another minute? What codes are setting?
Are you loosing spark or fuel when it stalls? If it's spark you will need a scantool to see if the PCM is telling it to shut off. What year was the Grand Cherokee that you used the engine from?
Did you use the 1999 wiring harness and PCM in the 2000?
The only way your going to determine the issue is to monitor the PCM with a scantool.. It will show what's going on when it stalls..
You are very welcome..