1988 Buick Regal Repair Question
Topics covered: Engine, Fuel pressure, Gas.
Mileage: 120,000 miles.
Mileage: 120,000 miles.
Asked on December 9, 2011
Injectors wont fire on start up and cuts out at certain rpm.
The ecm for some reason wont tell my injectors to fire when I try to start my car. I replaced the ecm and I'm still having the same problem. Also at higher rpm the engine will cut out and if I hold the gas it will stall and die.
Asked by jspath43Answer
Replied on December 9, 2011
check your fuel pressure
Replied on December 9, 2011
Thought about that but it doesn't do it on cold start. Once the engine warms up and I shut it off that is when I have the starting problem.
Replied on December 9, 2011
Check the individual injector resistances, I would expect you to see around 13-15ohms or slightly higher. If you find one or more that is significantly lower, you have shorted injectors. The resulting increase in current flow, is shutting down the injector driver in the ECM.
