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I have code po138

Vehicle: 2010 town and country limited 4.0 V6
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1 Answer

P0138 - 02 sensor 1/2 circuit high

Circuit high codes means there is a disconnection , this disconnection can be at the sensor or internal of the sensor, Bank 1 is where cylinder 1 is located , Sensor 2 these are catalytic monitor sensor,which is behind the catalytic convertor.
answered by (10.8k points)
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