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P0133, P0153 A/F SENSOR 1 EC-1241 < COMPONENT DIAGNOSIS > [VQ35DE] C D E F G H I J K L M A EC N P O 5. Also check harness for short to power. YES >> GO TO 9. NO >> Repair open circuit, short to ground or short to power in harness or connectors. 9. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER EC-1186, "Component Inspection" . Is the inspection result normal? YES >> GO TO 10. NO >> GO TO 13. 10. CHECK MASS AIR FLOW SENSOR EC-1197, "Component Inspection" . Is the inspection result normal? YES >> GO TO 11. NO >> Replace mass air flow sensor. 11. CHECK PCV VALVE EC-1502, "Component Inspection" . Is the inspection result normal? YES >> GO TO 12. NO >> Repair or replace PCV valve. 12. CHECK INTERMITTENT INCIDENT Perform GI-42, "Intermittent Incident" . Is the inspection result normal? YES >> GO TO 13. NO >> Repair or replace malfunctioning part. 13. REPLACE AIR FUEL RATIO (A/F) SENSOR 1 Replace malfunctioning air fuel ratio (A/F) sensor 1. CAUTION: • Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one. • Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant (commercial service tool). >> INSPECTION END DTC ECM Ground Continuity Connector Terminal P0133 F13 45 Ground Not existed 49 P0153 53 57 |