hi partners i got a big problem, my chevy is not runing good some times does a long crank and when starts it runs really bad, stumbles an dies has crank sensor changed and pump cam sensor changed, now showing 18, 19, 35, 54 & 65 codes ani help?

 

Welcome!

 

Thanks Redchevy44

 

Crank sensor must be AC Delco ONLY!
All others are bad right out of the box.

Optical sensor is very delicate and must be put back in the exact same position as it was removed-otherwise it will cause a big headache and might require that the IP be put back on a calibration stand to correct it?
It can be repositioned through trial and error if patient though?