The right meaning of this engine P2466 Code helps for solving the car engine problem. When you do not know the real meaning, you can use the automobile dictionary meaning for solving the car engine. You can easily collect the automobile dictionary meaning of the car engine code from online. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 4 for Transmission. 6 for Control Module Throttle Actuator Position Performance and 6 for Cruise Control System – Vehicle Accel Too High. Once the car engine is ok, then test the car engine by a test drive.