The o/p switch doesn't have any control on your fuel pump circuit, not this vehicle. Check for voltage and ground at the fuel pump motor, engine cranking, at the pump connector, gray wire is voltage, black is ground. If you have good voltage and ground with no pump action, suspect the fuel pump. Use a fuel pressure gage to double check, my hearing is no good, can't hear pump with engine cranking.
Monday, June 27th, 2011 AT 4:58 PM