P0191 Ford -

Question

61 plate Ford C-Max 1.6 diesel, engine cuts out will sometimes start and run for varying lengths of time
Shows code P0191, relplaced fuel rail and sensor, no change, replaced fuel filter and cleaned EGR valve no change, what do I do next?

Answer 1

P0191 Fuel rail pressure sensor " A " circuit range perfromance

On the pressure sensor there is a refference voltage and it is termed sensor "A" this code represent a disconnection of the sensor it is not being seen by the ECM check the connection and its harnes for a open circuit.