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HIGH PRESSURE FUEL PUMP EC-549 < DTC/CIRCUIT DIAGNOSIS > [MR FOR NISMO RS MODELS] C D E F G H I J K L M A EC N P O HIGH PRESSURE FUEL PUMP Component Function Check INFOID:0000000012198094 1. CHECK HIGH PRESSURE FUEL PUMP FUNCTION With CONSULT 1. Start engine. 2. Check “FUEL PRES SEN V” in “DATA MONITOR” mode of “ENGINE” using CONSULT. Without CONSULT 1. Start engine. 2. Check the voltage between ECM harness connector terminals as per the following conditions. Is the inspection result normal? YES >> INSPECTION END NO >> Proceed to . Diagnosis Procedure INFOID:0000000012198095 1. CHECK HIGH PRESSURE FUEL PUMP POWER SUPPLY 1. Turn ignition switch ON. 2. Check the voltage between ECM harness connector and ground. Is inspection result normal? Monitor Item Condition Values/Status FUEL PRES SEN V Engine speed: Idle 1,140 – 1,460 mV Engine speed: Revving engine 1,300 – 2,900 mV ECM Condition Voltage Connector + − Terminal F26 55 50 [Engine is running] NOTE: BATTERY VOLTAGE (11 - 14 V) [Engine is running] BATTERY VOLTAGE (11 - 14 V) JPBIA4722ZZ JPBIA4723ZZ + − Voltage ECM Connector Terminal F26 54 Ground Battery voltage |