I did a boost leak test and have found a leak on what seams to be the iacv. Right under the charge pipe coupler. Would this be leaking cause of a bad iac valve or o ring or do you think it's the throttle body shaft seals that are causing it to leak there? Possibly both I guess. Any thoughts?

 

if you feel it coming out of the iacv valve... may be the oring...
easy enough to pull it out and check it.

 

i can’t feel it but when I spray it with soap and water it looks to be around the top of the iavc valve near the screw closest to the throttle cable. I also am running injector dynamic Id1000cc injectors I want to replace the seals as well. Would you know if I can use OEM seals or? Stock fuel rail.