Diagnostic help
The engine stops when the DTC appears. Engine speed is limited to 2200 the next time the engine is started.
A mechanical fault is preventing the throttle from closing. P1251 or P1264 generated and throttle control in limp-home mode. Throttle has been open since then despite the driver releasing the accelerator pedal.
WARNING:
The car must not be driven until the fault has been rectified.