The automobile dictionary meaning of the car engine P2829 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 8 for Ignition System Or Misfire. 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 9 for Kick-Down Switch Failed Short. The engine P2829 code had an extravagant diagnostics process, with showing engine error codes on the air conditioning display. However, the system was difficult, misunderstood by customers, and a rash of unpredictable failures led to the expertise being rapidly retired. Do not fix the car engine by immature automobile engineer.