If you post the code number you’ll get better comments. Engine codes usually start with a “P” followed by a 4 digits, like P0420.
If the main air filter for the engine gets clogged the symptoms could indeed be stalling and lumbering accelerations. I don’t see any reference to it in the service data, and I’m not sure what the purpose of the “secondary air filter” is, so hard to say what those symptoms might be.