You need to fix the car engine properly and you need to use some tools and machines. You need to know the process of solving the car engine, The engine P1792 Code is necessary thing what you need to know. The automobile dictionary meaning of the code is not very important but you can 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. 7 for Auxiliary Emission Controls. 9 for Crankshaft Position Sensor Circuit Performance and 2 for A/C System High Pressure High Temperature.