If you want to know the general meaning of the car engine code, you should search online. The general meaning of the car engine P2079 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 0 for Fuel And Air Metering. 7 for Vehicle Speed Output Circuit and 9 for Kick-Down Switch Failed Short. The powertrain of the car engine is faulty here and this information is found from the general meaning. The real meaning of the code lets you know the correct meaning of the code and exact problem of the car engine.