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TuningBot DTC Database · v4.37.15

P1121 Land Rover - Throttle position (TP) sensor - range/ performance problem

Manufacturer-specific interpretation for Land Rover. All interpretations of P1121

P · PowertrainEngineOBD2

What P1121 means

P1121
Throttle position (TP) sensor - range/ performance problem Land Rover · engine Data confidence 62%

The control module judged the Throttle position (TP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Land Rover.

Possible causes

  • Wiring
  • supply voltage
  • TP sensor
  • ECM

Related and nearby codes

How to read P1121

P

Powertrain: engine, transmission and driveline systems.

1

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

121

Specific fault index within the subsystem.

Frequently asked questions about P1121

What does P1121 mean?

Throttle position (TP) sensor - range/ performance problem. The control module judged the Throttle position (TP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Land Rover.

Is P1121 generic or manufacturer-specific?

P1121 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 P1121 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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