Need help identifying Vacuum hoses '90 2.3L LX Convertible

Hi,

I would like some help identifying some of the hoses coming out of this vacuum distribution manifold, located on the drivers-side firewall. I cant find a picture of this in my Chiltons manual.

This is on my 1990 mustang LX convertible, 2.3L 4-cylinder, automatic transmission, air conditioning

1. Goes to Air filter

2. ? (transmission possibly?)...car runs rough when unplugged

3. ? Thin vacuum line going to some diaphram on the firewall, located at the top of passengers side firewall. It looks looks like it opens/closes a vacuum circuit possibly for the air conditioning.

4. ? This hose looks like it goes into a computer module (BAP or MAP sensor possibly) mounted on the firewall, a few inches to the left of this vacuum distribution manifold.

5. Goes to the charcoal canister.

6. Goes to brake booster assembly.

7. ? This vacuum line just dissapears into the drivers side fender/firewall (about where the two meet).

8. This is capped (looks factory)

9. Goes to the upper intake manifold. This I suspicion is the main source for vacuum going to this distribution manifold.



Any help is greatly appreciated

Thanks, Steve

Thanks! Identifying the
EGR Valve vacuum line was most helpful