whats up, well i boosted my car this past summer and been having idling problems. It DOESNT idle at all. When i come to a stop it just shuts off or stays at 200 rpm. I changed my iac and looked over the pinouts on the wire conversion harness just to make sure but they are all good. Could it be my 3bar wiring? Any input would help me at this point thanks also YES the car is fully tuned.

set up is
afi ram horn
57trim
3bar gm
chrome ecu
750's

 

is it tuned?

 

i put that it was lol the guy who tunes my car bes1tuning says it might be my idle map