pcm swapable.

[simple2029]

I been told that the pcm can not be swaped from another jeep. Is this true ? i have a 98 GC 6CYL. 4.0LITER. i got a pcm from antozone on the way and i just wanted to post and ask.. thanks for any info.

 

[Bounty__Hunter]

You need to have the stealership program the VIN onto the PCM after a certain year, not sure which year this started, maybe '96 with the introduction of OBDII.

 

[simple2029]

I know mine needs the vin programed into it. but it still made me think has anyone tried to swap one.... just incase it will work..

 

[simple2029]

Tomorrow my new referb pcm is getting programed from the dealer and hope it fixes my stalling problem. Its the last thing i can change out.
I did the spark plugs. Wires. Cap . Rotor. Cam sensor. Crankcase sensor. Ignis coil. Mas air flow sensor. Both CCV breathers. And did many test on gas rail psi. @ just a idle and driving.
The timing is at idle 10-19.50'
Its set by the computer so i cant change itt.
Hope the new pcm fixs the random stalling.

 

[simple2029]

New pcm in and praying the random stall went with the old pcm.

 

[simple2029]

So far so good. No stalling and no back fires...

New pcm in..
Amen

 

[simple2029]

Redone pcm is in and just a update. The random stalls are gone and no issues.

 

[Curly]

Im thinking I have the same problem in my 95 wrangler. The PCM is really slow to set when vehicle is cold but I can start it over time. Now after I get it running I have a stalling / backfire issue. I know the PCM is shot but is it also the cause of the stalls or do I have another problem.

 

[simple2029]

The stalls and back fires was just what i had.. got the pcm from parts store and dealer flashed it..

All fixed now.
I put new plugs wires cap rotor ig coil crank case and cam sensor and no fix so i broke down and did the pcm.