The engine P1222 Code supports to fix the car engine. The powertrain problem of the car engine is easy to fix and you need to get the real meaning of the code but if the real meaning of the code is not accessible, you can use automobile dictionary meaning. 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. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 2 for A/C System High Pressure High Temperature.