How do you remove PROM from ECM on 1991 Pontiac sunbird?

To remove the PROM (Programmable Read-Only Memory) from the ECM (Engine Control Module) of a 1991 Pontiac Sunbird, first disconnect the vehicle's battery to ensure safety. Locate the ECM, usually found beneath the dashboard or near the passenger side. Carefully unclip or unscrew the ECM to access the PROM chip. Gently pull the PROM out of the socket, taking care not to damage the pins or the ECM.