The engine P0326 Code has various meanings and those meanings are from the different car manufacturers. The code has general meaning and that is automobile dictionary meaning what is not very important thing for solving the car engine. The automobile dictionary 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. 2 for Cylinder 10 Contribution/balance Fault and 6 for Exhaust Gas Recirculation Sensor B Circuit High. If you know the car name, then it becomes easier to find the real meaning of the code.