P1131 / SUBARU

Front oxygen sensor circuit malfunction (short circuit)

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P1131 / ROVER

Oxygen Sensor Engine Lean *Codes* A U

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P1131 / MAZDA

HO2S Bank 1 Sensor 1 Signal Below 0.45v (A/F Ratio Too Lean)

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P1131 / JEEP

GLOW PLUG MODULE VOLTAGE SUPPLY

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P1131 / JEEP

GLOW PLUG MODULE INTERNAL FAULT

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P1131 / JAGUAR

Lack Of HO2S Switch - Sensor Indicates Lean

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P1131 / GENERIC

Lack Of HO2S Switch - Sensor Indicates Lean

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P1131 / FORD

Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1

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P1131 / CHEVROLET

HO2S Circuit Low Variance Bank 1 Sensor 2

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P1131 / CADILLAC

HO2S Circuit Low Variance Bank 1 Sensor 2

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P1131 / BUICK

HO2S Circuit Low Variance Bank 1 Sensor 2

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P1131 / AUDI

Bank2-Sensor1 Internal Rsistance too High

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