When you detect any problem in the car engine, you should let it run. The car engine P1450 Code is an important thing and powertrain problem is the main problem here what is easy to fix but need to know the right meaning of the code. The automobile dictionary meaning of the code can be fixed when it is necessary to use. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 4 for Transmission. 5 for TP Sensor Learn Not Complete and 0 for Transmission Engaged At High Throttle Angle.