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  1. JEEP P0139

P0139 / SCION

HO2S12 Circuit Slow Response

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P0139 / ROVER

Oxygen Sensor Slow Response *Codes* A D

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P0139 / MOPAR

O2 SENSOR 1/2 SLOW RESPONSE

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P0139 / JEEP

O2 SENSOR 1/2 SLOW RESPONSE

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P0139 / JEEP

O2 sensor 1/2 Slow response

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P0139 / GENERIC

02 Sensor Circuit Slow Response (Bank 1 Sensor 2)

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NOTE: Results from this database are the beginning of the diagnostic process, further investigation should be performed to confirm results before you begin repairs.