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Home >> BMW >> 2006 >> 330i Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Codes With Diagnostics (N52) >> MSV70 Engine Operating System DTCS >> DTC P0133, BMW Hex Code 0x2C39, BMW Code 11321: O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) (MAX) >> Possible Fault Causes
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Possible Fault Causes

Sensor aging. Sensor contamination. An open wire can also produce this fault scenario in isolated instances.