I had the following error codes
P1133 - HO2S Insufficient Switching Bank 1 Sensor 1 P0133 - O2 Sensor Circuit Slow Response Bank 1 Sensor 1 P0130 - O2 Sensor Circuit Bank 1 Sensor 1 P0442 - EVAP System Leak Detected (small leak) P0455 - EVAP System Leak Detected (large leak)
I went ahead an replaced my upstream O2 sensor. I immeditaly reset the memory and drove my car for 15 minutes. Now I have this code pending
P1133 - HO2S Insufficient Switching Bank 1 Sensor 1
I don't think having replacing my O2 sesnor fixed my problem. What is the next logical step?
I have a Saturn Ion 2003.