The real meaning of the car engine P2826 Code is more important than the general meaning. The general meaning of the code is found easily from online. Due to the wrong meaning of the car engine of the code, you may face terrible problem of the car engine. The car engine should be fixed fast and it may be fixed properly by the real meaning. You may use general meaning of the code and it 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 6 for Cruise Control System – Vehicle Accel Too High.