The engine P0459 Code is a necessary thing and you need to use the right meaning for solving the car engine. The powertrain problem of the car engine can be fixed at cheap rate and no component is necessary to change. The engine code has automobile dictionary meaning and that is P for OBD-II Diagnostic Powertrain (P) Trouble Code For Engine. 0 for Intake Valve Control Solenoid Circuit Low. 4 for Engine Oil Temperature Sensor Malfunction. 5 for Cylinder 10 Contribution/balance Fault Cylinder and 9 for Exhaust Gas Recirculation Sensor B Circuit High. When the car engine is ok, take it for a test drive.