The automobile dictionary meaning of the P2823 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 3 for Transmission Control Module Reprogrammable Memory. The engine P2823 code seems a kind of powertrain problem and it is easy to fix. There are presently 2 key types of cylinder deactivation used today, dependent on the type of engine. The engine P2823 code for the pushrod style which uses solenoids to change the oil heaviness brought to the lifters.