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OBD Codes > BMW > p0133

BMW Information

DATSC provides free error code information for BMW vehicles and is provided free of charge.

Facts
Country & Continent of Origin: Germany (Europe)

O2 Sensor Circuit Slow Response

PossibleSymptons

You will likely not notice any drivability problems, although there may be symptoms.

PossibleCauses

A code P0133 may mean that one or more of the following has happened: The oxygen sensor is faulty The wiring to the sensor is broken / frayed There is an exhaust leak

PossibleCauses

The simplest thing to do is to reset the code and see if it comes back. If the code comes back, the problem is more than likely the front Bank 1 oxygen sensor. You will likely wind up replacing it but you should also consider these possible solutions: C

SpecialNotes

This involves the front oxygen sensor on Bank 1. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or un