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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-489 . CIRCUIT OPERATION • The injector power is supplied from the MFI relay (terminal No. 4). • The PCM controls the injector by turning the power transistor in the PCM "ON" and "OFF". . TECHNICAL DESCRIPTION • The amount of fuel injected by the injector is con- trolled by the amount of continuity time the coil is • A surge voltage is generated when the injectors are driven and the current flowing to the injector • The PCM checks this surge voltage. . DESCRIPTIONS OF MONITOR METHODS . MONITOR EXECUTION . MONITOR EXECUTION CONDITIONS (Other 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) • Not applicable . AK303851 B-27 (GR) AB CONNECTOR: B-27 AK303803AB CONNECTOR: B-17X MFI RELAY B-17X AK303059 CONNECTOR: B-23 PCM AB AIR CLEANER B-23 |