My 03 TD4 is running like sh1t and my temp gauge is lower than it should be and my EML comes on after the engine has warmed up. I had the garage check the codes and it came up with P0480 Open/Short Circuit Cooling Fan and P1190 Fuel Rail Pressure Control Deviation Too Large ( I have change the Fuel Rail Sensor)
The Haynes book talks about the Coolant Sensor controlling the fuel flow is this the case?