'86 Idle problem
Corvette Enthusiast
Joined: Oct 2003
Posts: 523
Likes: 139
From: La Quinta CA
Sounds like you may have knocked a vacuum line off. Check around the intake for loose vacuum lines. A simple test is to spray a little carb cleaner in the area that you were working on and see if the idle speed changes at all. If it does, then it's a vacuum leak.
Team Owner
Joined: Jan 2003
Posts: 20,254
Likes: 221
From: Summerland B.C. Canada
Look at the bottom of TB on drivers side. There is a vacuum line that comes from there and goes to EGR relay(bolted to thermo housing). From there, a vacuum line heads to EGR diapragm. Maybe you broke one of those lines.
