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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-572 STEP 7. Check the trouble symptoms. Procedure 6 (2) Check the diagnostic trouble code (DTC). YES : Replace the PCM. Then go to Step 8. Refer to GROUP 00, How to Use − How to Cope with Intermittent Malfunctions . STEP 8. Test the OBD-II drive cycle. Diagnostic Function − OBD-II Drive Cycle − Procedure 6 − (2) Check the diagnostic trouble code (DTC). YES : Retry the troubleshooting. DTC P0301: Cylinder 1 Misfire Detected CAUTION If DTC P0301 has been set, TCL related DTC . TECHNICAL DESCRIPTION • If a misfire occurs while the engine is running, the engine speed changes for an instant. • The PCM checks for such changes in engine speed. . DESCRIPTIONS OF MONITOR METHODS Monitor angular acceleration of crankshaft and detect malfunction when negative variation of the . MONITOR EXECUTION Continuous . MONITOR EXECUTION CONDITIONS Other Monitor (There is no temporary DTC stored in memory for the item monitored below) • Not applicable Sensor (The sensor below is determined to be normal) • Camshaft position sensor • Mass airflow sensor • Engine coolant temperature sensor • Intake air temperature sensor • Barometric pressure sensor • Throttle position sensor . |