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TuningBot DTC Database · v4.37.15

P1177 Land Rover - Fuel trim (FT) rich mixture

Manufacturer-specific interpretation for Land Rover. All interpretations of P1177

P · PowertrainFuelOBD2

What P1177 means

P1177
Fuel trim (FT) rich mixture Land Rover · fuel Data confidence 62%

The control module detected a fault associated with the Fuel trim (FT) rich mixture circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Land Rover.

Possible causes

  • Fuel pressure
  • injectors
  • MAF sensor/ MAP sensor
  • EVAP system

Related and nearby codes

How to read P1177

P

Powertrain: engine, transmission and driveline systems.

1

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

177

Specific fault index within the subsystem.

Frequently asked questions about P1177

What does P1177 mean?

Fuel trim (FT) rich mixture. The control module detected a fault associated with the Fuel trim (FT) rich mixture circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Land Rover.

Is P1177 generic or manufacturer-specific?

P1177 is a manufacturer-specific code. In this database it is documented for: Land Rover. The same number can mean something different on other brands.

Can TuningBot remove P1177 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 Land Rover engines See the results →

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