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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-699 . CIRCUIT OPERATION • Power to the intake manifold tuning solenoid power is supplied from the MFI relay (terminal • The PCM controls ground intake manifold tuning solenoid by turning the power transistor in the . TECHNICAL DESCRIPTION • To judge if there is open circuit in the intake man- ifold tuning solenoid drive circuit, PCM measures • The PCM drives the intake manifold tuning sole- noid. After the solenoid is turned off, the PCM will . DESCRIPTIONS OF MONITOR METHODS • If a surge current is not generated in the coil after the intake manifold tuning solenoid has been . MONITOR EXECUTION • Continuous . 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 . AK201039 MFI RELAY B-22X AB CONNECTOR: B-22X |