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P0138 code
Hey so I got a a P0138 code on my 1996 Tahoe and replaced the O2 sensor to see if it solves the problem but the check engine light came back on with the same code. The code P0138 is an O2 sensor circuit high voltage (bank1, sensor 2). The possible causes are: Faulty o2 sensor short to...- chelu_ton
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