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TuningBot DTC Database · v4.37.15

P1171 Chevrolet - Fuel system - lean during acceleration

Manufacturer-specific interpretation for Chevrolet. All interpretations of P1171

P · PowertrainEngineOBD2

What P1171 means

P1171
Fuel system - lean during acceleration Chevrolet · engine Data confidence 80%

The control module detected a fault associated with the Fuel system - lean during acceleration circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.

Possible causes

  • Fuel filter
  • fuel pump
  • HO2S
  • injectors

Related and nearby codes

How to read P1171

P

Powertrain: engine, transmission and driveline systems.

1

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

171

Specific fault index within the subsystem.

Frequently asked questions about P1171

What does P1171 mean?

Fuel system - lean during acceleration. The control module detected a fault associated with the Fuel system - lean during acceleration circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.

Is P1171 generic or manufacturer-specific?

P1171 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 P1171 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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