pearl_iroc

ok so i hope this is the right place to put this, so i have a 88 tpi iroc 350. i just recently had headers put in and ever since i got it back from the shop i get the ses light wen i start the car in the mornig till i drive around an the temp goes to about 150 or so then the light goes away till the car is cold again, also starting the car in the mornig takes a few cranks and it idles horrible to the point of cutting off, i think it has to do with my maf sensor as the clip on the connector is broken and they had it off for some reason, coukld this be my probelm, ohh and i tried seaching ohh by the way i pulled codes 15 33 and 44