Bosch 0 820 027 991 Diesel Fuel Pressure Sensor is a Bosch-manufactured sensing device that measures diesel fuel pressure in the fuel system and provides a corresponding electrical signal to the engine control unit. The 0 820 027 991 designation uniquely identifies this unit within Bosch's diesel fuel sensor lineup. This sensor is used in diesel fuel systems to monitor pressure and help the engine control unit adjust fuel delivery for optimal performance.
