Code 42

[SCOOBY DOO]

Swap in a known good ECM and report back.

 

[hensleyt]

I believe it a wiring harness problem you said you have some pin problems.

 

[hensleyt]

Took some offline advice and changed the crank sensor.

save that part the only relationship it has to your problem is its 2 feet from the ignition module

 

[That GN Guy]

Rebuilt Delco pcm from rock auto is in, problem solved!

No idea how that was possible, never hit bad pcm on the tree with any parts. But hey, now I have a few "known working" parts laying around

I let it run for 10 minutes or so with no codes, we'll see how it runs when I have the time to take it out for a spin.

Thanks for the help everyone, this forum is great.

 

[turbojay]

Rebuilt Delco pcm from rock auto is in, problem solved!

No idea how that was possible, never hit bad pcm on the tree with any parts. But hey, now I have a few "known working" parts laying around

I let it run for 10 minutes or so with no codes, we'll see how it runs when I have the time to take it out for a spin.

Thanks for the help everyone, this forum is great.

Make sure to take it for a long drive. The pcm in mine always failed after the car was driven 20-30 miles. Hopefully your issue has been resolved.

 

[That GN Guy]

Took it for a drive tonight, maybe 30 or 40 minutes. Didn't get a CEL and the car ran great.

 

[MONSTER GN]

Good thread, giving it a bump so I can return to it later after running through the flowchart. MAL Code 42 constantly illuminated, loss of power, and returns immediately even when battery disconnected, will advise my findings if I ever get any free time to poke around at it.