Faulty fuel pressure control valve
Fuel pressure control valve harness is short to ground
Fuel pressure control valve circuit poor electrical connection
Engine Light ON (or Service Engine Soon Warning Light)
Fuel Pressure Control Valve Short To Ground is the generic description for the P1023 Audi code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information
about the P1023 Audi OBDII code.