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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-845 44 Power supply Ignition switch: "ON" 4.9 − 5.1 V 45 Manifold absolute Ignition switch: At altitude of 0 m (0 ft.) 1.2 − 1.8 V At altitude of 600 m (1,969 1.1 − 1.7 V At altitude of 1,200 m (3,937 1.0 − 1.6 V At altitude of 1,800 m (5,906 0.9 − 1.5 V Engine: warming up, idling 0.46 − 0.66 V When engine is suddenly revved Voltage varies 51 Fuel pump relay 1 Engine: While engine is idling after having From battery 52 Turbocharger Engine: Warming Engine is idling B+ When engine is suddenly Voltage drops 53 Turbocharger Engine: Warming Engine is idling B+ 4,000 r/min Voltage drops 58 Power steering Engine: warming When steering wheel is not B+ When steering wheel is 1 V or less 60 Generator G • Engine: warming up, idling 2 • Stop light: OFF to ON Voltage increases 61 Generator FR • Engine: warming up, idling 2 • Stop light: OFF to ON Voltage drops 62 Generator L Ignition switch: "ON" 0.5 − 2.0 V Engine: idling B+ 72 Power supply Ignition switch: "ON" B+ 73 MFI relay (power Ignition switch: "LOCK" (OFF) B+ Ignition switch: "ON" 1 V or less TERMINAL INSPECTION ITEM INSPECTION CONDITION (ENGINE CONDITION) NORMAL |