Diagnosis & Repair Procedure
- Perform DTC CONFIRMATION TEST . If DTC P0133 is set, go to next step. If DTC P0133 is not set, problem is intermittent. System is okay at this time. See TROUBLE SHOOTING - NO CODES article.
- Replace HO2S No. 1 and go to DTC CONFIRMATION TEST . Recheck for DTC P0133. See RETRIEVING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM. If DTC P0133 is still set, replace PCM and go to DTC CONFIRMATION TEST .