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DTC P0141 Indicates "O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)". Bank 1 Sensor 2 is the HO2S after the catalytic converter.On a 4 cylinder engine it is the sensor on or after cat. It could be a bad wire or a bad ecm most of the time it is the Sensor that goes bad. On a 6 cylinder engine with 4 oxygen sensors it is the bank with cylinder one, sensor after catalytic convertor.

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14y ago
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Q: How to fix Honda Accord DTC P0141 Heater Circuit Bank 1 Sensor 2?
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