Buddy picked up a '95 ZJ with the 4.0l in it, and the dealer is telling him it needs a new PCM. It will start, runs like crap for a little bit, like its waaay out of timing, then sometimes die. He took the PCM into the dealer and they said it was bad.
Now, they are saying he'll need a new one (~$350), and they will have to flash it (~$100), but he has to have the vehicle there for them to do it (+$$ for tow).
We've read a few posts saying that you can just plug and play PCM from a vehicle with the same options, and some posts saying you have to get it flashed. On top of that i don't see why you would need the vehicle there, there are performance websites that you can ship your PCM to and have it flashed, car unseen.
We know little to nothing about PCMs in general, and are getting everything from hear-say. Haven't had a chance to check continuity on the whole harness and what not. The PO had replaced just about every sensor in the engine bay before he picked it, but you never know.
Any suggestions are greatly appreciated. I know it's not an XJ, but you guys know the 4.0l so thought this would be a good place to start.
Now, they are saying he'll need a new one (~$350), and they will have to flash it (~$100), but he has to have the vehicle there for them to do it (+$$ for tow).
We've read a few posts saying that you can just plug and play PCM from a vehicle with the same options, and some posts saying you have to get it flashed. On top of that i don't see why you would need the vehicle there, there are performance websites that you can ship your PCM to and have it flashed, car unseen.
We know little to nothing about PCMs in general, and are getting everything from hear-say. Haven't had a chance to check continuity on the whole harness and what not. The PO had replaced just about every sensor in the engine bay before he picked it, but you never know.
Any suggestions are greatly appreciated. I know it's not an XJ, but you guys know the 4.0l so thought this would be a good place to start.