The automobile dictionary meaning of the P1298 Code is not highly important thing but do not ignore it. When you have no right meaning of the code, you need to use it. 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. 9 for Crankshaft Position Sensor Circuit Performance and 8 for PCM Stack Overrun. Due to use of the wrong meaning of the code, you may face terrible problem in the car engine. That is why, careful when the car engine is fixing.