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EC-644 < COMPONENT DIAGNOSIS > [VK56DE] P0133, P0153 A/F SENSOR 1 OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. RETIGHTEN AIR FUEL RATIO SENSOR 1 Loosen and retighten air fuel ratio (A/F) sensor 1. EM-166, "Removal and Installation" . >> GO TO 3. 3. CHECK EXHAUST GAS LEAKAGE 1. Start engine and run it at idle. 2. Listen for an exhaust gas leakage before three way catalyst (manifold). OK or NG OK >> GO TO 4. NG >> Repair or replace malfunctioning part. 4. CHECK FOR INTAKE AIR LEAKAGE Listen for an intake air leakage after the mass air flow sensor. OK >> GO TO 5. NG >> Repair or replace malfunctioning part. 5. CLEAR THE SELF-LEARNING DATA
With CONSULT-III 1. Start engine and warm it up to normal operating temperature. 2. Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CONSULT-III. 3. Clear the self-learning control coefficient by touching “CLEAR” or “START”. 4. Run engine for at least 10 minutes at idle speed. Is the 1st trip DTC P0171, P172, P0174 or P0175 detected? Is it difficult to start engine?
Without CONSULT-III 1. Start engine and warm it up to normal operating temperature. 2. Turn ignition switch OFF. BBIA0539E PBIB1216E 2010 Pathfinder |