The general or automobile dictionary meaning of the car engine P2434 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 4 for Transmission. 3 for Cruise Control Servo Indicates Low and 4 for Cruise Vehicle Speed/Set Speed Difference Too High. This general meaning of the code is very useful but comparison with the real meaning. This engine P2434 code seems a kind of powertrain problem what is not very difficult to solve. You can easily solve this problem if you have minimum idea about the car engine and its code.