The engine P0452 Code informs some information of the car engine problem and it helps to identify the location of the car engine problem. The Engine may get new problems if right meaning of the code is not used for solving the car engine. The automobile dictionary meaning of the engine code 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 and 2 for Exhaust Gas Recirculation Sensor B Circuit High. When the car engine is ok, take it for a drive as test.