I got four codes when having engine light checked. What could it be? Toyota echo 2001

Question

I got four codes when I had it scanned. Engine light came on. These are the four codes. PO440, PO 441, PO 446, PO300. What could it be?

Answer 1

P0440 Evaporative emission control system malfunction

P0441 EVAP emission control system incorrect purge flow

P0446 EVAP emission control system vent control malfunction

P0300 Random misfire

The purge vacuum hose somehow got disconnected, this happens usually during a airfilter change or check. When there is a incorrect purge or no purge you code a incorrect purge and as a result the evap vent also responds with a code.