P2279 and P0300-P0306 Faults in 2005 Honda Pilot: Idle Misfires and Stalling Until Warm-Up with AC On

My 2005 Honda Pilot is experiencing P2279 and misfire codes P0300 through P0306. The vehicle stalls after startup and only runs smoothly once it reaches operating temperature. This issue occurs specifically when the air conditioning is on; with AC off, the engine does not stall but still exhibits idle misfires. The car has ample power and performs well during highway driving, indicating no major drivetrain issues. I've already replaced all four spark coils (1 through 4), yet the problem persists. What could be causing these persistent idle misfires and stalling? Any insights or diagnostic suggestions would be greatly appreciated.