Meaning of the car engine P2667 Code can be utilized for solving the car engine. You need to study the actual meaning of the code for solving the car engine problem. Here, it seems that powertrain is faulty and this problem is not much difficult to solve. If the real meaning of the car engine code is not available to use, the general meaning of the code can be used and that is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 6 for Vehicle Speed Control And Idle Control System. 6 for Control Module Throttle Actuator Position Performance and 7 for Cruise Inhibit Control Circuit.