Can a bad ECU cause all injectors on a car to be stuck open?

Possible, but highly unlikely. The injectors (3, 4, 5, 6, 8, 10, 12, or 16 of them) are operated by individual transistors inside the ECU that control the ground side of each injector. After consulting a wiring diagram for an average vehicle there... read more

Fuel injector can crack or break, which will cause a gas leak. Any cracks on the exterior body of the injector can cause fuel to leak from the body rather than the flowing through the nozzle. If a damaged injector is the cause of the leak, the gasoline will both be visible on the injector and cause a smell. read more