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Cooper Works, 2D Convertible
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Diagnostic Trouble Codes - With Diagnosis (N14)
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Diagnostic Trouble Codes Med17.2 (N14)
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DTC P2251, BMW Hex Code 0x2AAB, BMW Code 10923: O2 Sensor Negative Current Control Circuit/Open (Bank 1 Sensor 1) (SIG)
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BMW Fault Code Description VS-Text
BMW Fault Code Description VS-Text
Oxygen sensor before catalytic converter, virtual ground