Electrical problem
2004 Pontiac Grand Am 4 cyl Front Wheel Drive Automatic
i checked all relays, fuses, and fuel pressure but injectors still not firing. Mass air flow is new so what other sensors could affect injectorrs?
Saturday, July 24th, 2010 AT 11:53 AM
1 Reply
JDL
MECHANIC
16,098 POSTS
Did you check for voltage at the injector plug? Goes hot when you turn on the key. If no ground, several possibilities, security system-- no rpm signal-- faulty injector-- faulty wiring circuit.