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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-403 OBD-II DRIVE CYCLE PATTERN Refer to Diagnostic Function − OBD-II Drive Cycle − Pattern 4 . . TROUBLESHOOTING HINTS (The most • Catalytic converter deteriorated. • ECM failed. DIAGNOSIS STEP 1. Replace the catalytic converter. Diagnostic Function − OBD-II Drive Cycle − Pattern 4 (3) Check the diagnostic trouble code (DTC). YES : Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, Diagnosis or GROUP 42C, Diagnosis − ID Codes Registration Judgment Table <Vehicles with NO : The inspection is complete. DTC P0441: Evaporative Emission Control System Incorrect Purge Flow . TECHNICAL DESCRIPTION • ECM detects a stuck open condition of evapora- tive emission purge solenoid and a stuck closed • Stuck open evaporative emission purge solenoid is judged through monitoring leak of evaporative • Stuck closed evaporative emission ventilation solenoid is judged after 20 seconds from end of . DESCRIPTIONS OF MONITOR METHODS Fuel tank pressure decreases largely during purge-cut. . MONITOR EXECUTION Continuous . MONITOR EXECUTION CONDITIONS Other Monitor (There is no temporary DTC stored in memory for the item monitored below) • Fuel tank pressure sensor monitor AK704131 Evaporative emission Exhaust gas AB Connector: B-07 B-07 (B) AK704132 AB Evaporative emission Spare tire Connector: D-116 D-116 (B) |