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TuningBot DTC Database · v4.37.15

P129F Chevrolet - Fuel pump speed signal - incorrect

Manufacturer-specific interpretation for Chevrolet. All interpretations of P129F

P · PowertrainFuelOBD2

What P129F means

P129F
Fuel pump speed signal - incorrect Chevrolet · fuel Data confidence 62%

The control module detected that the Fuel pump speed state or value did not match what was expected. This is the manufacturer-specific definition used by Chevrolet.

Possible causes

  • Wiring
  • fuel pump flow control module (FPMC)
  • fuel pump flow control module (FPCM) relay

Related and nearby codes

How to read P129F

P

Powertrain: engine, transmission and driveline systems.

1

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

29F

Specific fault index within the subsystem.

Frequently asked questions about P129F

What does P129F mean?

Fuel pump speed signal - incorrect. The control module detected that the Fuel pump speed state or value did not match what was expected. This is the manufacturer-specific definition used by Chevrolet.

Is P129F generic or manufacturer-specific?

P129F is a manufacturer-specific code. In this database it is documented for: Chevrolet. The same number can mean something different on other brands.

Can TuningBot remove P129F 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 Chevrolet engines See the results →

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