Fuel trim (FT) rich mixture
Land Rover · fuel
Data confidence62%
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.
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.