I have attached a picture of a hard plastic vacuum line that I'm trying to figure where it goes to. It comes from the driver's side of the intake manifold. It is a hard black plastic line, once near the throttle body it makes a 90 degree bend. It almost looks like it goes to the coil ??? I deleted the air injection system, could it had been a part of the system, so should I just cap it off ??? I hope that my description and picture can help identify this vacuum line. Thanks.

 

what year camaro? could be the evap system or the vent for the opti
http://shbox.com/1/1996_evap.jpg
http://shbox.com/ci/opti_vent.jpg

 

I would say that's the vent for the opti. On my 93, my evap is one single line that makes a 90 to right under the throttle body. You're looks like it'd connect to the check valve for the opti. Plus, I think I can see your evap line hiding in the background.

 

It's a 1995. The vent lines from the Opti are routed, the small hose is going to the air intake tube between the throttle body and mass air sensor, the larger one that has the check valves are going to a vacuum tee on the side of the intake manifold.

 

check figures 52-58 see if any of them make sense to you | Repair Guides | Vacuum Diagrams | Vacuum Diagrams | AutoZone.com