i switched out my whole 79 chassis and engine harness to 82 gl . i have a fews problems that i know of. first what do i do about the cyl head temp ? also what about o2 sensor ? and 3rd when i turn the key to on the fuel pump kicks and stays on as long as its on on . and if i run the 79 ecu the fuel pump doesnt go on at all? hope you guys can help