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I have a 2000 Yukon Denali and am getting a code P0141 O2 Sensor ''Heater Circuit Malfunction Bank 1 Sensor 2
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Holland     Reply with quote
Can anyone explain if this just means this O2 sensor is probably bad and needs to be changed. And if so, where exactly is this sensor located. Also, l know there are (4) O2 sensors in all...are they all physically the same sensor but just in different locations?
Dragon     Reply with quote
its on the drivers side after the cat. yeah its probably bad
Cat     Reply with quote
That O2 sensor is bad. Common problem. They are not all the same, because they mesur gasses before and after the catyletic converter. It would be on the right side rear of the cat.
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