my car stalls at point of acceleration on 1991 Chevrolet Caprice

Car turns on stays at idle once I test drive it stalls after I stop and accelerate again. Check engine code indicates it could be camshaft actuator position sensor. My car is not equipped with that particular sensor. Need help any suggestions.

1 answer 1 comment
poss idle air control valve.
I have replaced idle air and coolant temp sensor will check connections thanks.