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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-53 DTC SET CONDITIONS Logic Flow Chart . Check Conditions • 3 seconds or more have passed since the ignition switch was turned to "ON" position. Judgement Criteria • Mass airflow sensor output voltage has continued to be lower than 0.2 volt for 2 seconds. . OBD-II DRIVE CYCLE PATTERN − OBD-II Drive Cycle − Procedure 6 . . TROUBLESHOOTING HINTS (The most likely • Mass airflow sensor failed. • Open or shorted mass airflow sensor circuit, or connector damage. • PCM failed. END MALFUNCTION YES YES YES NO NO NO CONTINUOUS FAILURE FOR 2secs OUTPUT VOLTAGE < 0.2V OUTPUT VOLTAGE > 4.9V MONITORING CONDITIONS GOOD START AK302377 YES NO |