norris.doug81

have 2000 T/A ls1 when i bought the car the lot said they had the egr removed and the computer programmed to a 2002 when they didnt have them maybe?? so i let the car sit for 2 years now i got codes and lights screaming at me all drivers side plugs burning rich car bogging when driving. how do i reprogram the comp is it the programmer like the one to get more h/p and change shift settings and such i think around 3 hundred bucks or do i have to send it off? please help and thanks in advance