I have p1403,p1513, p0132,p0122, chevrolet optra..plz help to diagnose

Question

When ac on engine stalls, rpm goes down 500 to 800, I have checked obd scan,
Codes are p1513, p1403,p0132,p0122
Mechanic clean.throttle body and egr
But problem not resolved..
He just increase rpm so vehicale not shut off on signal..but that is not solutin..he dnt know.how ro do..
Many mechanics I have check but imrc valve nobody check where it actual.location by the way so I check my self