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P0102, P0103 MAF SENSOR EC-177 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] C D E F G H I J K L M A EC N P O Diagnosis Procedure INFOID:0000000009886574 1. INSPECTION START Which malfunction (P0102 or P0103) is duplicated? P0102 >> GO TO 2. P0103 >> GO TO 3. 2. CHECK INTAKE SYSTEM Check the following for connection. • Air duct • Vacuum hoses • Intake air passage between air duct to intake manifold OK >> GO TO 3. NG >> Reconnect the parts. 3. RETIGHTEN GROUND SCREWS 1. Turn ignition switch OFF. 2. Loosen and retighten three ground screws on the body. 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. BBIA0354E BBIA0368E |