What does a MAP Sensor look like, where is it located and how do I replace it on a 1996 Plymouth Voyager, 2.4 ltr engine?

So you dont know where it is, or what it looks like, but you know its bad, and need to replace it? Its on the end of the intake plenum, 3 wires, once you find it, you will figure out how to replace it.

Tedpineywood has a point, how do you know that your problem is a $60 sensor? Assuming you have codes or some other correct diagnostic, it is on the right end of the intake manifold / plenum. It is a black box about an inch square with a round connector carrying the three electricals plugged into the top. If you cannot find it look under the intake vaccuum line which can hide it.