I recently just got this idling issue when I replaced my brake calipers. I changed the booster and the master cylinder. Bleed the system 5 times. Then the idle problem appeared. Car finally threw a code 14, IACV. Bought a new one. Car ran some what ok. i drove it last night for 30mins. Had a bogging issue when I cruised, at full throttle it ran like a champ! It'd idle a 1k when I'd wait at the light still, something not right. I cleaned the FITV, that's a no go! I took my finger and covered the lower port hole on the throttle body, I noticed that it was still sucking air, but it's a slight pull. Is that normal to still be sucking air when the motor is warmed up? Anyways, now it's throwing a cel again, code 14. I took the IACV off put it to a battery, the soleniod still works, the piston moves back and forth when I give it power. The IACV is brand new! I've been messing with this issue for 2 days now and I just want take it to a shop, but I know it's an easy fix! All this because I changed the calipers! Does anybody have any suggestions?