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TuningBot DTC Database · v4.37.15

P1563 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1563

P · PowertrainEngineOBD2

What P1563 means

P1563
Fuel quantity adjuster - lower stop value VAG · engine Data confidence 62%

The control module detected a fault associated with the Fuel quantity adjuster - lower stop value circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Fuel quantity adjuster blocked/ defec tive
  • lower stop value reached
Applies to Audi
P1563
Quantity Adjuster (N146): Lower Limit Reached VAG · engine Data confidence 84%

The control module detected that the Quantity Adjuster (N146) value was below the expected limit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17971. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

  • Malfunction Indicator Light (MIL) ON
  • Reduced Power
  • Engine jerking

Possible causes

  • Fuse(s) faulty
  • Wiring and/or Connector(s) from/to Quantity Adjuster (N146) faulty
  • Quantity Adjuster (N146) not adjusted
  • Quantity Adjuster (N146) blocked/faulty

Recommended checks

  • Check Fuse(s)
  • Check Wiring and/or Connector(s) from/to Quantity Adjuster (N146)
  • Check/Adjust Quantity Adjuster (N146)
  • Check/Replace Injection Pump
Applies to Volkswagen

Related and nearby codes

How to read P1563

P

Powertrain: engine, transmission and driveline systems.

1

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

563

Specific fault index within the subsystem.

Frequently asked questions about P1563

What does P1563 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected a fault associated with the Fuel quantity adjuster - lower stop value circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.

Is P1563 generic or manufacturer-specific?

P1563 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 P1563 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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