The engine P0808 Code helps to solve the car engine problem but meaning of the code needs to fix the car engine. Do not allow automobile general/dictionary meaning for solving the car engine. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 8 for Ignition System Or Misfire. 0 for IC Circuit High Voltage and 8 for PCM Stack Overrun. You can get the general meaning of the code from online and you will use this meaning when you have no right meaning of the code for fixing the car engine.