P1138 / VW

Long Term Fuel Trim Add. Fuel B2 System Too Lean

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P1138 / ROVER

Oxygen Sensor Engine Rich *Codes* A D

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P1138 / MAZDA

HO2S Bank 1 Sensor 2 Signal Above 0.45v (A/F Ratio Too Rich)

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P1138 / JAGUAR

Lack Of HO2S12 Switch - Sensor Indicates Rich

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P1138 / GENERIC

Lack Of HO2S12 Switch - Sensor Indicates Rich

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P1138 / FORD

Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1

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P1138 / FIAT

Diesel pressure circuit

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P1138 / CHEVROLET

HO2S Bank 1 Sensor 2 Rich or High Voltage

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P1138 / CADILLAC

HO2S Bank 1 Sensor 2 Rich Or High Voltage

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P1138 / BUICK

HO2S Bank 1 Sensor 2 Rich Or High Voltage

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P1138 / BMW

O2 Sensor Heater Circuit Low Voltage (Bank 1 Sensor 2)

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P1138 / AUDI

Long Term Fuel Trim Add.Fuel,Bank2 System too Lean

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