Is this the map sensor? It does not look like a map sensor to me but it is in the place where the sensor usually goes. I need to replace the rubber hose that connects to the intake. See arrows.

 

96 ? I believe that's the canister purge valve. Pretty sure they relocated it there in 96 - used to be inline right by the throttle body.
Anyway the nipple on your throttle body is for the purge line.
You should have a hose coming to the valve from the charcoal canister and the other line goes to the throttle body.
- For venting fumes from your gas tanks.