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Solution Landrover P0234 “reduced engine performance” error

Vehicle model:
Land Rover Freelander 2-(2.21 only) DPF diesel automatic
Vehicle identification number VIN: 001002x

Symptom:
The car feel like it has no power. The dashboard indicates: “reduced engine performance” message and?DTC?P0234-00 error code stored.

Diagnostic equipment:
JLR mangoose SDD/ JLR mangoose SDD Pro Win7 OBD?diagnostic cable for Jaguar and Land Rover
new-jlr-mangoose-for-jaguar-and-land-rover-5

JLR Mangoose SDD
jlr-mangoose-sdd-pro-for-jaguar-and-land-rover-5

JLR Mangoose SDD Pro
Diagnosis analysis:

P0234 is a common untested DTC’s. It may caused by following reason:
1. Brake torque (brake on and throttle at wide open
2. Transmission oil temperature (TOT) exceeds calibrated threshold
3. Engine over temperature
4. Ignition misfir