So what came first ?
The ECM codes or the crank sensor code ?
Don't know the order of the codes that were on the scanner.

Also Dark Knight just answered me on his thread about the used engine/crank sensor thing.
The engine runs and he has no crank sensor fault.
So no need for calibration when installing the correct used engine with a correctly working ECM that came with the car.

 

The order doesn't mean anything no way to tell what came first.

I explained the rest earlier. Needs to be done to run right.

 

Yeah I got one from flashmastersecm.com and they program to Vin and I got to do the 30 min relearn part I think. How do you program the crankshaft sensor

 

Forget the 30 minute relearn that does not apply to HHR. You will need to go to a shop that has a diagnostic computer like a Tech2 or SnapOn to relearn the crankshaft.

 

So your saying i aint gonna have to do anything to ecm but put it on. It's the crankshaft sensor that in going to have to relearn.

 

The ECM has to know what the crank sensor is "seeing". That's what the programming is all about.
The ECM most likely will fix the other codes but not the crank sensor. And I say "most" with fingers crossed.
This is how it's done.