Well I did some research and I found out that this can be caused by the vacuum created by the air rushing in to the engine. So I am wondering how to fix this. Should I drill little holes in the throttle plates, or will that mess up the fuer/air mixture?

 

What are you talking about? Do not drill anything into your throttle plates unless you want the worst running engine ever. What is wrong with the pedal. TBI set-ups are amazingly simple and in turn amazingly easy to fix. Take a step back and re-post what your problem is.

 

The pedal is perfect when it is off, the throttle body works fine, but as I said before the engine has to be running for it to stick.
I know it is not the linkage because I can push the pedal with ease when the car is off. As soon as the car is on the pedal sticks for about the 1st half-inch it is pushed down. Then is goes eaisly the rest of the way. If I am on the highway and I let off of the gas for less then a second then push it again, it pushes eaisly the whole way. But, if I cosat for while then push the gas it will sitck for about the first half inch it is pushed. It' hard to describe, ask if any more info is needed. I also just rebuilt the throttle body.

 

Here's the original thread: https://www.thirdgen.org/techbb2/sho...hreadid=273740

 

I'm sorry if I sound like a jerk, but I really want to get this fixed. I would think someone else found a way to fix this or has had similar problems.

 

Did you happen to try what I suggested in the other thread?

 

Sorry I didn't mention that. I tried it and it closes fine. It's not a problem with it being stuck open. It is a problem when it first opens.

 

Oh, OK, I see what your saying now. I can't believe it took me this long to realize that .

Anyway, the only thing I can think of right now is checking the carpet. Seriously, sometimes the carpet in the interior can get tangled up in or sit right next to the gas pedal and cause some "interesting" problems, to say the least. I have a quick question for you, though. This is going to sound weird, but do you press the gas pedal with your heel or with your toes?

(If your wondering why I asked that question, just try pressing down on the gas pedal at the very top of the pedal, and then try the same thing at the very bottom of the pedal, feels different doesn't it? When you press it down at the very top, it takes more travel to get it to WOT.)

 

I usually press it with the ***** of my feet, right under my toes. I've tried pressing it different ways but I get the same results.

 

Well, to be honest, I'm stumped. Anybody else have any ideas?

 

Anybody?

 

Not really sure what is going on here. So, only when the car is on, the pedal sticks. Does it stay at a certain RPM? Not sure with the 89 model, but does it have cruise control? If so, disconnect the cable, might be sticking. Cruise control works off of engine vacuum, thus causing it to only stick when car is on. Hope this helps and sorry if I'm wrong and way off the problem.

 

I havn't tried the cruise control yet, but I'll see what that does.

 

Ok, I'm having some trouble disconnecting the cruise control cable. The Haynes manual I'm using has some pics but they aren't very helpful. Could anyone point me in the right direction. Some good pics would be nice.

 

I'll have some pics up in about 30 minutes, but I'll try to explain it as best I can for the time being.

The cruise control connector is the middle connector on the throttle lever. To remove it, you have to hold the throttle lever at WOT (all the way open), and push as far forward on the cruise control cable as you can. Once it reachs the end, you should be able to take the cable off from the side. If the cable won't come as far forward as it should, than disconnect the cruise control cable at the cruise control diaphragm (it's located behind the driver's side headlight and right next to the radiator).

EDIT: Here are some pictures. Keep in mind that the TBI is not installed on the car, this is just the quickest way for me to get pics for you.

Here's how the cruise control cable looks normally:


This is where the cruise control cable has to be to remove it, as far forward as possible:


And this is a pic of the back side of the cable, and you can see why the cable has to be in right place to come off, because the hole is just big enough for the connector on the throttle lever:


Hope this helps.

 

Should I disconnect that from the diaphragm or just the throttle body. I see a vacuum line running from the diaphragm should I disconnect that and plug it?

 

I'd just disconnect it from the throttle body, and then see if the problem persists.

 

Well, I unhooked the cruise control from the throttle body, and it helped a little bit. The stick is still there though.