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HIGH PRESSURE FUEL PUMP EC-397 < DTC/CIRCUIT DIAGNOSIS > [MR20DD] C D E F G H I J K L M A EC N P O 10. CHECK HIGH PRESSURE FUEL PUMP INSTALLATION 1. Turn ignition switch OFF. 2. Check high pressure fuel pump for improper attachment or looseness. Is the inspection result normal? YES >> GO TO 11. NO >> Repair or replace malfunctioning part. 11. CHECK CAMSHAFT 1. Remove camshaft. Refer to EM-81, "Removal and Installation" 2. Check camshaft. Refer to Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-44, "Intermittent Incident" . NO >> Replace camshaft. Refer to EM-81, "Removal and Installation" . Component Inspection (High Pressure Fuel Pump) INFOID:0000000010775287 1. CHECK HIGH PRESSURE FUEL PUMP-1 1. Turn ignition switch OFF. 2. Disconnect high pressure fuel pump harness connector. 3. check the resistance between high pressure fuel pump terminals as per the following conditions. Is the inspection result normal? YES >> GO TO 2. NO >> Replace high pressure fuel pump. Refer to . 2. CHECK HIGH PRESSURE FUEL PUMP-2 With CONSULT 1. Reconnect high pressure fuel pump harness connector. 2. Start engine. 3. Select “FUEL PRES SEN V” in “DATA MONITOR” mode of “ENGINE” using CONSULT and check the Without CONSULT 1. Start engine. 2. Check fuel rail pressure sensor signal voltage. High pressure fuel pump Condition Resistance + − Terminal 1 2 Temperature [ ° C ( ° F)] 20 - 30 (68 - 86) 0.46 - 0.51 Ω Monitor item Condition Indication FUEL PRES SEN V At idle 820 - 1,140 mV Revving engine up to 4,000 rpm quickly. 820 - 2,900 mV ECM Condition Voltage (Approx.) Connector + − Terminal F7 33 39 [Engine is running] 0.82 – 1.14 V [Engine is running] 0.82 – 2.9 V |