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TuningBot DTC Database · v4.37.15

P1159 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1159

P · PowertrainEngineOBD2

What P1159 means

P1159
Mass air flow (MAF) sensor, Bank 1 & 2 - implausible ratio VAG · engine Data confidence 62%

The control module judged the Mass air flow (MAF) sensor, Bank 1 & 2 signal implausible when compared with other operating data. This is the manufacturer-specific definition used by Audi.

Possible causes

  • EGR system
  • intake leak
  • wiring
  • MAF sensor 1/2
Applies to Audi
P1159
Signals from MAF - 1 and MAF - 2: Implausible Correlation VAG · engine Data confidence 80%

The control module detected a fault associated with the Signals from MAF - 1 and MAF - 2: Implausible Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17567. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

Power Loss

Possible causes

  • Air Intake dirty
  • Mass Air Flow Sensor (G70) defective
  • Mass Air Flow Sensor 2 (G246) defective

Recommended checks

  • Check Mass Air Flow Sensor (G70)
  • Check Mass Air Flow Sensor 2 (G246)
  • Check Exhaust Gas Recirculation
  • Check Boost Pressure Control
Applies to Volkswagen

Related and nearby codes

How to read P1159

P

Powertrain: engine, transmission and driveline systems.

1

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

159

Specific fault index within the subsystem.

Frequently asked questions about P1159

What does P1159 mean?

Diagnostic Trouble Code (2 interpretations). The control module judged the Mass air flow (MAF) sensor, Bank 1 & 2 signal implausible when compared with other operating data. This is the manufacturer-specific definition used by Audi.

Is P1159 generic or manufacturer-specific?

P1159 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 P1159 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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