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P1139 - Heated Oxygen Sensor (HO2S) Insuff. Switching Bank 1 Sensor 2

P1140 - Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 1 Sensor 2

Looks like the O2 sensor in front of the cat. converter is not playing nice.


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thanks jim is it hard to change cleared codes engine service light went out codes have not come back yet if they do i guess its time to change ox sensor

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