The engine code P0088 is a OBD2 problem code that tells us there is high fuel compression create in the fuel system. This high fuel compression is detected by the fuel compression sensor set on the fuel rail. Once the high fuel compression is perceived the ECM causes a Check Engine Light to be got on the dashboard of the vehicle. The engine P0088 then sources the car to go into a failsafe mode until normal fuel pressure is detected. There are some reasons of the problem of the car engine and these are Fuel pressure sensor has failed, Kicked or restricted fuel supply line and Faulty fuel pressure regulator.