1999 Chevrolet Truck Repair Question
Why does my ECM-A keep blowing out?
You sure its the ECM-A fuse instead of ECM-1?
It's either one...
You have a short circuit between the fuse to the computer-could be the pink wire is shorted directly to ground or one of the injectors is shorted out and dragging the rest down
You will need to check all ecm oup puts . If the resistance of a solenoid is to low it will pass to much current and take out the ecm driver on that circuit . Was the truck running well before the first ecm failed ?
Yes the truck was running well before the first ECM failed.
How did you determinethe first ecm was bad.
The fuse for ECM 1 was burned out and it didn't want to start anymore.
Is it still blowing the fuse and when does it blow ? As soon as you stick it in or when trying to start it or just turning the key. Are. Are you shore the ecm is bad or maby a fuse problem ?