What equipment for testing?

I want to test my throttle position sensor, ECN, etc..., cause something is messed up in my 94 bonnie. Can someone recommend the type of equipment I should get to test it.

You need a digital volt meter and a good manual that will give you proper voltages. You can get some very good ones at Sears, Snap On and other good tool manufacturers have them. If you want to scan the computer you will need a scanner that you can purchase at most auto parts stores. Craftsman and Snap On have them too.

Or if you know the range of resistance between "minimum throttle" to "wide open throttle", you can check by resistance.