MainePorsche

Guys,
This is embarrassing.
Going to re-install the manifold at present and I'm scratching my head about something. I am very familiar with the vacuum layout for the car. I have a vacuum port on the throttle plenum that is without its mating line. Visually I have everything accounted for and I even opened page 24-116 in the WSM and I confirmed I have all things accounted for... But I still have one vacuum port non mated. What do I do... just cap it off ?

Thanks in Advance.
Craig

davek9

Can you describe exactly which one or post a pic?
IIRC there is a California "option" that is not used and is capped, it is on the upper front of the Throttle Body

MainePorsche

It appears the way I am connected my line to the valve for the charcoal canister was interchanged with to the vacuum port for the air pump valve. My 'T' line is tied in. But... I have two ports on dorsal surface of the plenum just aft of the ISV and two ports on ventral surface just fore of the black MAF door connector and medial to the throttle linkage. That makes a total of four ports. I only have three things to attach.

MainePorsche

I've re-aligned the air pump/charcoal connection.
I've capped port number 4.

MainePorsche

And...
Curious to see the running without the proximal vacuum loss.