DTC P0133: Bank 1 Heated Oxygen Sensor No. 1 - Slow Response: Notes

WARNING: This page is about a different car, the 2002 Isuzu Trooper. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Always inspect a faulty Heated Oxygen Sensor (HO2S) for contamination and correct cause before installing a new HO2S. Bank 1 refers to right cylinder bank.

NOTE: If any other DTCs are set (expect P0153, P1133, P1134, P1153 and/or P1154), diagnose them first before proceeding with this test.