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EC-184 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0130, P0150 A/F SENSOR 1 NO >> Go to Component Function Check INFOID:0000000005536596 1. PERFORM COMPONENT FUNCTION CHECK With GST 1. Start engine and warm it up to normal operating temperature. 2. Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in the suitable gear position. 3. Shift the selector lever to the D position, then release the accelerator pedal fully until the vehicle speed CAUTION: Always drive vehicle at a safe speed. 4. Repeat steps 2 and 3 for 5 times. 5. Stop the vehicle and turn ignition switch OFF. 6. Wait at least 10 seconds and restart engine. 7. Repeat steps 2 and 3 for 5 times. 8. Stop the vehicle. 9. Check 1st trip DTC. Is 1st trip DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005536597 1. CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection E38. Refer to Ground Inspection in . Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT 1. Disconnect A/F sensor 1 harness connector. 2. Turn ignition switch ON. 3. Check the voltage between A/F sensor 1 harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. >> Repair or replace harness or connectors. 4. CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. DTC A/F sensor 1 Ground Voltage Bank Connector Terminal P0130 1 F27 4 Ground Battery voltage P0150 2 F64 4 |