Check eBay for a used PCM. I bricked my PCM once when I tried to flash it via an SCT tuner. Found a used PCM on eBay and when it was delivered, I swapped it out and the truck started right up.

 

what year pcm will work the truck is a 97 the new motor is a 98 but i used the 97 harness. And yes the truck ran fine for two weeks before this issue so i know it has nothing to do with the swap

also yes i have tested the injectors they are pulseing. So that means the ASD is functioning correct?

 

The ASD is working if you get power to the injectors.

I don't think the 5.9 was available in '97. You could try a '98 PCM.

Do not even attempt running any PCM from '01 and up, the computer bus changed.

 

ok so figured i would give the truck a shot this morning. no it didnt start but now for whatever reason as soon as i turn my key in the run position my running lights come on.

 

The parking lights or DRL's?

Neither are run off of the CTM or PCM in a '97.

Sounds like there may be a bad ground if weird things are happening.

 

Ground for the PCM? corroded lose?

 

Missing engine ground straps?

 

the parking lamps now its not doing it. IDK i ran all new ground with 2gauge wire so i know its not a grounding issue. i think the truck is possessed.

 

Ok possessed is how my Dakota acted when my PCM freaked out on me but I had bucking, stalling, Idle problems, hard starts, engine cut outs just the strangest things happening.


The very strange thing is at times it ran great

 

Do you get 5 volts at the sensors?