Fuel Injector Functional
- If the engine will not accelerate smoothly and/or idles roughly, a fuel injector may be inoperative. To check injector,bring engine to operating temperature. With the engine idling, disconnect and reconnect each injector while noting any change in idle speed.
- If idle speed drops and recovers when the injector is reconnected, injector is okay. If an injector is disconnected and no change occurs in idle speed or quality, injector is bad.