2000 Chevy Silverado P1133B fault code

2000 CHEVROLET SILVERADO
175,000 MILES • V8 • 4WD • AUTOMATIC
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PATRIOT
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Got a P1133B fault code, which is heated oxygen sensor bank 1 sensor 1 fault. Is this most likely a faulty O2 sensor? If so where is it located? I see that the left side cylinders are most forward, so figured that would be bank 1? Where is bank 1 sensor 1 located specifically?
Apr 29, 2008 at 11:30 AM
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CHEVYNICK08
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bank 1 is the drivers side and sensor 1 is the one in front of the catalatic converter. just follow the exauhst manifold down to the down pipe you will find the sensor sticking out of the pipe it will have 4 wires comming off of it. if you are getting this code then it is most likely the sensor
Apr 29, 2008 at 12:11 PM