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TuningBot DTC Database · v4.37.15

P1058 BMW - Post catalytic convertor fuel trim (FT), bank 2 - too rich

Manufacturer-specific interpretation for BMW. All interpretations of P1058

P · PowertrainEmissionsOBD2

What P1058 means

P1058
Post catalytic convertor fuel trim (FT), bank 2 - too rich BMW · emissions Data confidence 62%

The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Post catalytic convertor fuel trim (FT), bank 2). This is the manufacturer-specific definition used by BMW.

Possible causes

  • Wiring
  • upstream exhaust leak
  • upstream H025
  • downstream H025
  • ECM

Related and nearby codes

How to read P1058

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

058

Specific fault index within the subsystem.

Frequently asked questions about P1058

What does P1058 mean?

Post catalytic convertor fuel trim (FT), bank 2 - too rich. The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Post catalytic convertor fuel trim (FT), bank 2). This is the manufacturer-specific definition used by BMW.

Is P1058 generic or manufacturer-specific?

P1058 is a manufacturer-specific code. In this database it is documented for: BMW. The same number can mean something different on other brands.

Can TuningBot remove P1058 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for BMW engines See the results →

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