The automobile dictionary meaning of the engine P0458 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 Cylinder and 8 for Exhaust Gas Recirculation Sensor B Circuit High. You can understand that where the car engine problem is and you know the process of solving the car engine problem. Do not use wrong meaning of the code for solving the car engine. Once you get the real meaning and you will use that meaning for solving the car engine.