Ahhh. That makes sense. It's my buddies car, keeps failing emissions. Changed the cat, o2 sensor, plugs, wires, pcv valve, and put on an AFPR, but it keeps failing.
Not sure what else to do.
Any ideas?
---------- Post added at 02:03 PM ---------- Previous post was at 01:59 PM ----------
Originally Posted by
TheOtherDave™
No. That's the vacuum fitting for the secondary intake butterflies.
Is that the IAB (Intake Air Bypass)?