I just found a niple for a vacuum hose on the front throttle body near the MAP. I'll cap it off and see if that changes anything.

 

I have a Chilton manual "Cheverolet Camaro 1982-92" Part # 8260 that DOES have the CFI info in it..(dual single-injector throttle bodies, offset like a "cross ram")
Reguarding the "nipple" on the temp sender, do you mean for a hose? And where was the location of the one you replaced?

 

Ok, I have vaccum coming into the MAP sensor, but no vacuum coming out of the second hose. I ordered a new sensor (its 20 years old, why not?). I am now pulling a code 42.

 

The MAP sensor only should have one hose, not 100% sure about the one on a CFI car tho. The EGR solenoid and the MAP are usually side by side, make sure it's the right one. The solenoid will have one hose going to the EGR valve..
Code 42 is the EST(electronic spark timing)circuit, usually set if you unplugged the single wire connector, a "Tan wire with a black stripe".
If not, clear codes and idle for at least 1 minute.(interrupt battery power for at least 10 seconds)
If the code 42 comes back, check for good ignition module connections, and have the module tested if they look good.
A Prom chip that's not fully seated in the ECM will set a code 42 too.
Check connections and see if it still sets a code 42, there's a long proccess using a meter to check harness grounds and resistance. A scanner will be useless for checking this...

 

Ok, maybe I checked the wrong sensor. The one that isnt pulling any vacuum is on top of the intake manifold-the vacuum line comes from the front right throttle body, enters a sensor with a 3 wire connector on top of it, and then has a hose going to the top of a round object near the distributor. There is also another larger vacuum hose that runs from the rear tb up to a sensor on the drivers side firewall. Which one is the MAP?

Also, where does the spark timing wire run to? Where is it unplugged?

 

Your MAP is on the Firewall, the other is the EGR sloenoid(activator)the round device is the EGR valve...
The spark timing wire usually has a short length, purposely left out of the main harness exposing a single connector. Usually near the firewall...Your under hood sticker should tell you in fine print...see "timing adjustment"...

 

Sorry to bring this post back from the dead, but I solved the problem (for now) I replaced all of the vacuum hoses, and that didnt make much of a difference. While replacing my wires, I noticed that my dist. cap was loose. When I checked it out, I found that the rotor was chewed to bits, and busted off the shaft. So thanks for the help guys.