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EC-118 < COMPONENT DIAGNOSIS > [VQ40DE] P0102, P0103 MAF SENSOR Diagnosis Procedure INFOID:0000000004297305 1. INSPECTION START Which malfunction (P0102 or P0103) is duplicated? P0102 or P0103 P0102 >> GO TO 2. 2. CHECK INTAKE SYSTEM Check the following for connection. OK >> GO TO 3. NG >> Reconnect the parts. 3. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten three ground screws on the body. Refer to OK or NG OK >> GO TO 4. NG >> Repair or replace ground connections. 4. CHECK MAF SENSOR POWER SUPPLY CIRCUIT 1. Disconnect mass air flow (MAF) sensor harness connector. 2. Turn ignition switch ON. BBIA0539E BBIA0541E 2009 Pathfinder |