Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P1261 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1261

P · PowertrainFuelOBD2

What P1261 means

P1261
Injector 1 - control limit exceeded VAG · fuel Data confidence 62%

The control module detected that the monitored Injector 1 - control limit value exceeded the calibrated threshold. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Control period too long
  • wiring
  • injector
Applies to Audi
P1261
PD Unit Injector: Cylinder 1 (N240): Regulation Range Exceeded VAG · fuel Data confidence 80%

The control module detected that the monitored PD Unit Injector: Cylinder 1 (N240): Regulation Range value exceeded the calibrated threshold. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17669. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

  • Drivability Issues
  • Reduced Power
  • Rough Engine Running
  • Increased Emission Values

Possible causes

  • Regulation times exceeded
  • Contact resistance

Recommended checks

Check Injectors and Injector Wiring

Applies to Volkswagen

Related and nearby codes

How to read P1261

P

Powertrain: engine, transmission and driveline systems.

1

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

261

Specific fault index within the subsystem.

Frequently asked questions about P1261

What does P1261 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected that the monitored Injector 1 - control limit value exceeded the calibrated threshold. This is the manufacturer-specific definition used by Audi.

Is P1261 generic or manufacturer-specific?

P1261 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 P1261 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 →

← Search the full DTC database