The engine P0314 Code is a serious code what contains necessary information of the car engine. If you find the right meaning of the code, you can solve the car engine problem fast. The automobile meaning of the code is also helpful for solving the car engine when it is used as secondary method. The automobile meaning of the code is P for OBD-II Diagnostic Powertrain (P) Trouble Code For Engine. 0 for Intake Valve Control Solenoid Circuit Low. 3 for Engine Oil Temperature Sensor Malfunction. 1 for Cylinder 10 Contribution/balance Fault and 4 for Exhaust Gas Recirculation Sensor B Circuit High.