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TuningBot DTC Database · v4.37.15

P1147 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1147

P · PowertrainEmissionsOBD2

What P1147 means

P1147
Heated oxygen sensor (HO2S) 1, Bank 2 - lambda regulation, system too lean VAG · emissions Data confidence 62%

The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (Heated oxygen sensor (HO2S) 1, Bank 2 - lambda regulation, system). This is the manufacturer-specific definition used by Audi.

Possible causes

  • Intake leak
  • wiring
  • HO2S
Applies to Audi
P1147
Heated oxygen sensor lambda regulation, system too lean VAG · emissions Data confidence 80%

The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (Heated oxygen sensor lambda regulation, system). This is the manufacturer-specific definition used by Volkswagen.

Possible causes

  • Intake leak
  • wiring
  • HO2S
Applies to Volkswagen

Related and nearby codes

How to read P1147

P

Powertrain: engine, transmission and driveline systems.

1

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

147

Specific fault index within the subsystem.

Frequently asked questions about P1147

What does P1147 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (Heated oxygen sensor (HO2S) 1, Bank 2 - lambda regulation, system). This is the manufacturer-specific definition used by Audi.

Is P1147 generic or manufacturer-specific?

P1147 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.

Can TuningBot remove P1147 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 VAG engines See the results →

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