Home >> Land Rover >> 2021 >> Discovery S >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index INGENIUM I4 2.0L Petrol, DTC: Powertrain Control Module P0611-02 To U2300-64 -- Discovery/L462 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - INGENIUM I4 2.0L Petrol, DTC: Powertrain Control Module P0611-02 To U2300-64 (G2116765) >> DTC P228C-77: Fuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too Low - Commanded position not reachable >> Possible Causes