Diagnosis & Repair

Using a stethoscope, listen for clicking sounds from each injector with engine at idle. Check resistance between injector terminals. Injector resistance should be 13.8-15.2 ohms at 68°F (20°C). Check for poor connections, loose terminals, and open or shorted wires. See WIRING DIAGRAMS article. Check for low fuel pressure and/or a blocked, leaking or dripping injectors. Perform repairs as necessary. When fuel injector DTC repairs are completed, perform REPAIR CONFIRMATION DRIVE CYCLE "A" .