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(P0301) CYLINDER #1 MISFIRE (CONTINUED) 17. INTERMITTENT MISFIRE Note: The condition that caused this DTC to set is currently not present. Inspect the related wiring harness WARNING: WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE With the engine running at normal operating temperature, monitor the DRB III T parameters related to the DTC while wiggling the wire harness. Look for parameter values to change and/or a DTC to set. Visually inspect the related wire harness. Look for any chafed, pierced, pinched, partially broken wires and broken, Inspect and clean all PCM, engine, and chassis grounds. Note: Reviewing the vehicle repair history may aid in the repair of the misfire condition. - Worn serpentine belt - Binding Engine-Driven accessories. - Misaligned water pump, P/S pump and A/C compressor pulleys - Improper CKP Sensor mounting - Poor connector/terminal to component connection. i.e., CKP Sensor, Fuel Injector, Ignition coil, etc. - Vacuum leaks - Restricted Air Intake system Were any of the above conditions present? Yes >> Repair as necessary. Perform POWERTRAIN VERIFICATION TEST - VER 2. No >> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition. ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 361 |