DTC P0133: Heated Oxygen Sensor No. 1 Circuit - Slow Response: Condition
WARNING: This page is about a different car, the 2003 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when time for Heated Oxygen Sensor No. 1 (HO2S-1) to change from lean to rich or from rich to lean is high (one cycle every 5 seconds). MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles. Possible cause is HO2S-1 malfunction.