Look up the vacuum tube layout on Pelican or Auto Atlanta.See below.
This job will be very tedious w/o perfect lighting ,and long skinny fingers.The correct connecting points and routing are very difficult to explain verbally and no photo really helps. A tough but simple job !
Be aware the vacuum hose can become brittle with heat/age. Even if you reconnect it perfectly you may get leaks that will trip a code &/or cause driveability problems.
The entire vacuum system should use color coded lines and fluorescent colored fittings !
Has anyone tried replacing the small diameter OEM lines with generic thick wall silicone tube? I ask because it is heat resistant and comes in garish colors. The OEM replacementt lines are expensive and not durable.
M96.20 Air Injection -99
M96.21/22 Air Injection 00-02 M96.23/24 03-
http://forums.pelicanparts.com/boxster-cayman-forum/653643-vacuum-lines.html
vacuum line routing on 2001 boxster s - Pelican Parts Technical BBS
There are lots of posts bemoaning this vaccum hose/connector confusion ,so it is time to come up with a radical solution? As these cars age, the problem will only become more frequent.