If all connections are good "dry, tight, no corrosion" then yes. It should be a defective sensor. These sensors are piezo sensors and create a voltage when sensing a knock. A bank refers to a side on a V style engine, 2 refers to the rear sensor on your bank 2. Bank 1 should be the side with cylinder #1 which should be the cylinder closest to you on one of the sides. So your looking for the rear sensor on the opposite side.
THE KNOCK SENSOR HAS FAILED.THE LOCATION IS LOWER SIDE TOWARD REAR OF ENGINE ON THE DRIVER SIDE.
Knock sensor circuit low voltage bank 2
- The ECM detects a KS signal voltage that is less than typical engine noise level for at least 4 seconds
Probable Cause[s]
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My 2008 avalanche keeps throwing a an o2 sensor code bank 2 sensor 1
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