The general meaning of the car engine P2514 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 5 for Computer And Auxiliary Outputs. 1 for Low Coolant Circuit and 4 for Cruise Vehicle Speed or Set Speed Difference Too High. The engine P2514 code seems a kind of powertrain problem. The valves of each cylinder are kept closed using a pair of arms that replace the conventional engine’s roller-type rocker arm. The engine P2514 code one of these arms what follows the cam profile while the 2nd arm joins to the valves. During normal engine operation the 2 arms are combined by a locking pin.