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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-303 . CIRCUIT OPERATION • The injector power is supplied from the injector relay (terminal No. 3). • The ECM controls the injector by turning the power transistor in the ECM "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 . DESCRIPTIONS OF MONITOR METHODS The ECM detects open circuit and short malfunction. . MONITOR EXECUTION Continuous . AK704087AB Connector: A-13 A-13 AK704115 Injector relay AB Connector: A-24X A-24X AK704088 MFI relay AB Connector: A-33X A-33X AK704120 Injector No. 2 AB Connector: B-120 B-120 (GR) AK704090AB Connector: B-10 B-10 (GR) AK704117 AB ETACS-ECU Connectors: C-304, C-317 C-317 C-304 |