This engine P1268 Code is found in the car engine. You will get this engine as common code what is used in many car engines. By the meaning of the code, you will get it as different. 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. 6 for Control Module Throttle Actuator Position Performance and 8 for PCM Stack Overrun. The letter P means powertrain and this problem can be fixed easily if the car engine is fixed by an automobile engineer.