Fuel Pump Relay - Help!
Reply #17 –
Does the SES light come on when keyed??? If yes the EEC relay is working. If no the EEC relay is KAPUT!!! If the back feed you performed is after the inertia switch and the inertia is tripped or removed you are not back feeding.
Check voltage at 37/57 of the ECM for battery when ignition is keyed. IS IT THEIR YES EEC IS OK. Or is the SES light on when keyed YES EEC IS OK!!! Install noid light in one injector connector crank does noid light blink?? Yes EEC OK. NO EEC KAPUT!!!
Best way to check the EEC relay is to see if the SES Light comes on with the ignition keyed. It supplies battery to pins 37/57 and powers up the ECM.