DTC P0133: Ho2S No. 1 Circuit, Slow Response: Condition
WARNING: This page is about a different car, the 2002 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when time for HO2S No. 1 to change from lean to rich or from rich to lean is high. MIL is illuminated when Power Control Module (PCM) detects malfunction during 2 consecutive drive cycles. Possible causes are:
- HO2S No. 1 malfunction.
- PCM malfunction.