The engine P1181 Code helps to fix the car engine by the right meaning but you can learn something from automobile dictionary meaning. Here, the problem is found in powertrain and this is minor problem. Without removing any component from the car engine, the problem of the car engine can be fixed. You can use automobile dictionary meaning for solving the car engine. The general meaning or automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 1 for Transmission. 8 for Exhaust Gas Recirculation System Valve 1 and 1 for TFP Valve Position Switch-Drive Without Drive Ratio.