Toyota Repair: toyota corolla 04, air intake hose, sensor curcuit

Question
my engine light shows several codes: oxygen sensor curcuit slow response
, random/multiple cylinder misfire:cyl1, cyl2, cyl3, cyl4
idle air control system
what would be the exact problem? thank you

Answer
Check for an intake air leak, especially the hoses at the air filter, check the purge hoses for the evap system, look for a leak at the air intake hose to the throttle body, can you give me the trouble code number for the idle air control system malfunction,