|
|
(P0301) CYLINDER #1 MISFIRE (CONTINUED) When Monitored and Set Condition • When Monitored: Any time the engine is running, and the Target Learning Coefficient has been successfully • Set Condition: When more than a 1.0% misfire rate is measured during two trips. POSSIBLE CAUSES ENGINE CONTROL RELAY OUTPUT CIRCUIT FUEL INJECTOR CONTROL CIRCUIT FUSED IGNITION SWITCH OUTPUT CIRCUIT COIL ON PLUG DRIVER CIRCUIT ENGINE MECHANICAL PROBLEM COIL ON PLUG SPARK PLUG FUEL STRAINER PLUGGED RESTRICTED FUEL SUPPLY LINE FUEL PUMP FUEL INJECTOR POWERTRAIN CONTROL MODULE For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA- Diagnostic Test 1. PRE-DIAGNOSTIC CHECK OUT Note: Always perform diagnostics with a fully charged battery. Note: Check connectors — Clean/repair as necessary. Poor pin to Note: Check for applicable TSBs related to the problem. With the DRB III T , read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and Perform this procedure prior to symptom diagnosis. Continue Go To 2 ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 353 |