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TuningBot DTC Database · v4.37.15

P1158 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1158

P · PowertrainEngineOBD2

What P1158 means

P1158
Manifold absolute pressure (MAP) sensor - range/performance problem VAG · engine Data confidence 62%

The control module judged the Manifold absolute pressure (MAP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring
  • hose connection(s)
  • MAP sensor
Applies to Audi
P1158
Manifold Pressure Sensor (G71): Implausible Signal VAG · engine Data confidence 80%

The control module judged the Manifold Pressure Sensor (G71) signal implausible when compared with other operating data. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17566. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Possible causes

  • Connections to / from sensor (G71) faulty
  • Sensor (G71) faulty

Recommended checks

  • Check wiring and connections
  • Check hoses
  • Check / Replace Manifold Pressure Sensor (G71)
Applies to Volkswagen

Related and nearby codes

How to read P1158

P

Powertrain: engine, transmission and driveline systems.

1

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

158

Specific fault index within the subsystem.

Frequently asked questions about P1158

What does P1158 mean?

Diagnostic Trouble Code (2 interpretations). The control module judged the Manifold absolute pressure (MAP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Audi.

Is P1158 generic or manufacturer-specific?

P1158 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 P1158 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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