I have over 250,000 on one vehicel, and have had that many on 4 other vehicles, and cannot count how many vehicles I put over 150,000.....and I have never had a PCM go bad. Sometimes mechanics and owners rush right to PCM change just to find out that it was not the problem. Lots of money wasted. PCM can go bad, but if you search, you will see more threads where PCM was replaced and problem persisted.

Need to check injector pulse. And if that is good, pull injectors and clean. Crud may have them plugged up. I read a thread the other day where someone referenced fuel rails rusting and causing problems. Fuel, spark, and timing......all gotta be good to run.

If you do decide to swap PCM, I would suggest JY (same model) and maybe coil for grins. At least you will be able to verify for less money.

 

When I put the Hughes Plenum on about 5000 miles ago I cleaned the rails and injectors plus put new orings on each injector . Rails were solid. The PCM was gonna be a last ditch effort. Putting the CKS in today . Keeping my fingers crossed.

 

well put the cks in and still no go..guess ill pull the injectors and see what they look like.i know its getting fuel cause the crank case is about 3/4 of an inch over the full line from trying to start it over the past two weeks..

 

Sounds like a failed engine temp sensor.

 

Make sure some of the debris from the failed cat has not ended up in the muffler. And check the fuel pressure with a gauge.