This matrix cuts out but only at over 70 mph and only sometimes, when it feels like it ..

When it cuts out, there is a total loss of power and the engine stops and will not restart for about 5 minutes.

I have P1181 fuel pressure monitor as a dtc which im struggling to find a clear definition for.

Also the live data for fuel temp is ranging from -40c to 350c, i cant find any reference to a fuel temp sensor.

Has anyone experienced this on this model ?
any help greatly appreciated .

Ed