I am not getting an error code, but the car is not running right at all. If you look down a little farther you can see my post that lists all the symptoms my car is experiencing. What do you think?

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91 Firebird 305/TBI - cam:.420/.442 204/214 - Hooker 1 5/8" headers - TFX PaceSetter Cat-Back - 3.42's Auburn Pro Posi - ASCD Ram-Air hood - Polished Formula Wheels w/Futura's - Open element - .5" Corian TB spacer - Lakewood LCA's - Hotchkis Lowering Springs - KYB Struts/Shocks - 14.78 @ 97.5 mph(G-Tech) - MacEwen MotorSports Whiteface Overlays - 412ci sb waiting to go in this spring.
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When my TPS went, it would not idle below 1,500 rpm PERIOD. It would work at anything ABOVE 1,500 rpm, but not below.

So, in answer to your question, with a bad TPS, I would expect the engine to either not idle below a certain rpm, not rev beyond a certain rpm, or act like its only at 1/2 impulse power.

 

I've gone through FIVE of those things on my 307 Olds. In addition to lousy or no idle, you won't get a linear response from the gas pedal. It may be doggy and erratic. If nothing else, it just "won't run right".

If you have an ohmmeter (hopefully with a needle meter movement), go to your TPS and connect between the middle terminal and one of the other terminals--doesn't matter. Push the plunger up and down or the gas pedal up and down. Watch to see how the needle moves in response. If it's SMOOTH, then the TPS is very likely to be O.K. If it's JUMPY or ERRATIC, then it's no good. The TPS is a potentiometer with a sliding contact. That contact or resistive surface get AFU after a while. Those things will die from heat, age, and gas leaking over from the float bowl if it's part of a Q-Jet.