Can Someone Identify This Random Hose?

[gti13]

Originally Posted by dsallean

this might help as well:

https://986forum.com/forums/boxster-general-discussions/69281-where-does-go-vacuum-valve.html

When I removed mine for cleaning I had the line to the electronic change-over valve just hanging loose and it took a while to locate where it went.

Okay so Line G is if you have an Automatic transmission? if so I have a 5 speed Manual

L should plug into the passenger side throttle body pipe, ill have to look for this as I dont remember seeing this but I will double check

[78F350]

Originally Posted by gti13

Okay so Line G is if you have an Automatic transmission? if so I have a 5 speed Manual

In the diagram, (G) is a 3-way and you should have two 3-way connectors on a 2000 or later manual trans 986. The Tip' will have a 3-way and a 4-way. Your other 3-way should probably be on or near (F), the vacuum reservoir.

L should plug into the passenger side throttle body pipe, ill have to look for this as I dont remember seeing this but I will double check

(L) is the rubber coupling on the intake that has a small hole that (H) or a piece of the smaller more rigid tubing can poke into.

The arrow is pointing to (L), where (H) should be connected either directly or with a small piece of tubing:

[gti13]

Thanks so much for your help guys, the line plugged into the small tubing on the passenger rear intake piping

I did notice another open T-connector on the passenger side under the intake mainifold

However I took it for a drive with the new plugs, spark Plug tubes, cleaned maf, new air filter and it revs so smoothly now and doesnt have that dead spot mid rpms, I did previously have a check engine light which so far has not popped up although I have only driven it maybe 10 or 15 miles since.

[blue62]

You could do a simple vacuum test. A vacuum gauge costs about $20.00.
Then you will know for sure that you at least have proper vacuum to the intake. Reading should be 19-22 with a steady needle.