P0139 Meaning: O2 Sensor Circuit Slow Response (Bank 1 Sensor 2) | CrankKey

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Related: P0155 Meaning — O2 Sensor Heater Circuit (Bank 2, Sensor 1) · P0133 Meaning — O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) · P0136 Meaning — O2 Sensor B1S2 Stuck Low · P0137 Meaning — O2 Sensor B1S2 Low Voltage · P0141 Meaning — O2 Sensor Heater (B1S2), next in the direct chain · P0171 Meaning — System Too Lean (Bank 1) · P0138 Meaning — O2 Sensor B1S2 Stuck High · P0420 Meaning — Catalyst Low Efficiency (Bank 1) · See the live P0139 page

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Related: P0155 Meaning — O2 Sensor Heater Circuit (Bank 2, Sensor 1) · P0133 Meaning — O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) · P0136 Meaning — O2 Sensor B1S2 Stuck Low · P0137 Meaning — O2 Sensor B1S2 Low Voltage · P0141 Meaning — O2 Sensor Heater (B1S2), next in the direct chain · P0171 Meaning — System Too Lean (Bank 1) · P0138 Meaning — O2 Sensor B1S2 Stuck High · P0420 Meaning — Catalyst Low Efficiency (Bank 1) · See the live P0139 page

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P0139 Meaning: O2 Sensor Circuit Slow Response (Bank 1 Sensor 2) | CrankKey