The TPS is fairly easy to test.
Here is some info on checking the TPS.
Should read .5 to about 4.5 the biggest problem is the TPS can be bad spots. Hard to spot with a meter, an O-scope works better. http://www.fiero.nl/forum/Forum2/HTML/081601.html
The map is hard to check using the engine. You really need a vacuum pump to check it correctly.
The map out put is 1 to 1.5 volts at idle to 4-5 volts at WOT
The output is on the LT Green wire.
Winaldl is a little easier for doing some of the check. (except on the 87-88 4's)
[This message has been edited by Dodgerunner (edited 05-11-2008).]