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7 CHECK HEATED OXYGEN SENSOR 1 HEATER (FRONT) Refer to “Component Inspection”, EC-QG-170. OK or NG OK © GO TO 8. NG © Replace heated oxygen sensor 1 (front). 8 CHECK HEATED OXYGEN SENSOR 1 (FRONT) Refer to “Component Inspection”, EC-QG-158. OK or NG OK © GO TO 9. NG © Replace heated oxygen sensor 1 (front). 9 CHECK MASS AIR FLOW SENSOR Refer to “Component Inspection”, EC-QG-115. OK or NG OK © GO TO 10. NG © Replace mass air flow sensor. 10 CHECK PCV VALVE Refer to “Positive Crankcase Ventilation”, EC-QG-28. OK or NG OK © GO TO 11. NG © Repair or replace PCV valve. 11 CHECK INTERMITTENT INCIDENT Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-QG-102. © INSPECTION END DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT) (RESPONSE MONITORING) QG16 I 18DE Diagnostic Procedure (Cont’d) EC-157 |