Oxygen sensor heater 2 - cylinders 1, 2, 3, 4, 5, 6
Land Rover · emissions
Data confidence62%
The control module detected a fault associated with the Oxygen sensor heater 2 - cylinders 1, 2, 3, 4, 5, 6 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.
191
Specific fault index within the subsystem.
Frequently asked questions about P1191
What does P1191 mean?
Oxygen sensor heater 2 - cylinders 1, 2, 3, 4, 5, 6. The control module detected a fault associated with the Oxygen sensor heater 2 - cylinders 1, 2, 3, 4, 5, 6 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 P1191 generic or manufacturer-specific?
P1191 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 P1191 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.