Has any one els came across this?

Working on a 2009 Chevy cobalt with 2.2.
Car cam in and would just crank. Another shop put a pcm and fuse box in it
and it didn’t do any thing.
I removed the tracker out of the car and got it to crank but still won’t start. I
have done a fuel pressure test, compression and spark and it’s passed all. I
even removed the valve cover to check timing and it is still in time.
Only code it is throwing is crankshaft position sensor not programmed. And
can’t program it since it won’t start

Can get it to start off a little spry of starting fluid but then dies

Fuel filter, fuel pump, PCM, battery, and engine bay fuse box have all been
replaced