P1133 Diagnostic Trouble Code Discussion for July 2007
Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
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| Help Request | Posted | |
| 2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S34 P1133: Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching. ... with p1133 & p0172 codes in it, reflahsed computer per Bulletin #04-06-04-053. Noticed on road trip afterwards that O2 sensor acting erratic. Code p0133 came back. Put new front O2 sensor in it. O2 sensor works great now, but noticed that p0172 failed ... |
July 24, 2007 |
