The meaning of the P0114 Code helps the automobile engineer to know the problem about. Reading car engine manual gives some necessary information of the car engine problem. The cause of the car engine problem is IAT sensor contribution to the ECM is very unreliable or is irregular between shorting and an open circuit. Some common symptoms of the engine code are engine may have pre-ignition and run lean, Use having black smoke out of the tailpipe on acceleration, Recurrent hard starting etc. You need to test the car engine for solving the car engine problem easily and do not drive the car with any engine problem.