HAILERS

Hey, pretty good drawing. But I think there is a misunderstanding about what the TPS does vs your idle. The idle speed isn't set using that screw on the tps. That screw for the tps is used to *rig* the throttle position sensor for when the car is at idle. When that sensor is is rigged properly at the *idle* position it will send the ECU a given voltage, which in this case is approx one volt. Then as you depress the pedal when driving, the voltage will increase. The ECU recognizes the increase in voltage and opens and shuts some solenoids at a given voltage and adjusts the fuel flow for those voltage signals. If the TPS is not *rigged* properly in the very first place, the ECU will still see voltage changes as you depress the pedal, but since it was rigged wrong the voltages will be occuring at throttle positions other than what the ECU is supposed to be seeing them at. Result: car runs crummy(high tech term).
Well anyway, the tps isn't used to set throttle speed. That is supposed to happen with a screw on top of your dymanic chamber and maybe the variable resistor, fast idle screw(only if its been messed with), and the throttle stop screw.
Your car is supposed to initialy start up and run at approx 3000 rpm for 17 seconds, then the speed should drop to about 1000 rpm approx and as the engine water temp rises, the rpm should go to 750 rpm where it should idle peacefully.
The tps should not be rigged until the engine is fully warm and that screw for it should not be used to set the idle speed (note I did not say it would not effect idle speed).
Oh the answer to your question about depressing the cable......I just meant if you can get your finger on the thin cable that attaches to the throttle lever, that you should just lightly shove up or down or fore and aft on the cable about 1/8th inch and the throttle lever shouldn't move. If the lever moves at just barely touching the cable then its too tight. Judgemental thing

HAILERS

I just read Keith's (Irv's) post, and no it does not work like that. When you depress the throttle, the hook move away from the tps plunger, not towards the plunger. See there Irv, never throw anything away(your na rx) because you may need it again someday). There does seen to be something holding the throttle open though which in turn keeps the hood from engaging the tps plunger. Like I say, its 4am. I'll do like Irv said and look at mine to try to figure what is keeping it open too far.
EDIT: I just looked at my car and compared the linkage to your pic. I think I determined your throttle is indeed cracked open. I put my index finger behind the rear of the dynamic chamber and found my throttle cable by feel. I lifted in a upward direction and I could lift the cable over 1/4 inch upward before I could see the linkage move in the slightest. That is what I'm trying to get you to do. To see if you have slack there.
I'm looking at your pic of the screw. See the two 10 mm bolts that hold your TPS on the throttle body. Well get a ruler and measure one and one half inches straight up from those bolts. In that vicinity you will see a tiny screw that has a 8mm jam nut on it. It goes thru a flange on the throttle body. At the bottom of the tiny screw, you should see a moveable part of the throttle linkage touching the bottom of the tiny screw. Move the throttle linkage and you'll see what I mean. Well the bottom of that screw should be touching the movable part of the throttle linkage when the car is at idle. Do you see a gap instead????? How about you take a picture of that area one and one half inches above the tps???? please.

HAILERS

Look at this picture http://www.rhichome.bnl.gov/People/s...rottlebody.jpg Ok. See the two bolts that hold the tps on. Right above there you see three holes drilled in the body all in a row up and down. Now look to the right of the top hole and you see a small screw one half inch from that top hole. Well if you move the throttle and let it come back to rest, the bottom of that screw should be touching the movable part of the throttle, which is that flat piece of metal that curves around. Does the bottom of the screw touch it???????????
That tiny screw in this picture seems to have some goop on its head. Just a note.
Hey, please take a picture of your throttle body just like the picture at http://www.rhichome.bnl.gov/People/s...rottlebody.jpg

HAILERS

Screw in this picture:

DCmina

Thanks Hailers! I'll go take a pic right now!

DCmina

Yoday when I started the car the needle went to 3000 RPM and stayed there a little before going back to 5000.
It didn't do that before, it just jumped right to 5000.

Oh and in the Haynes manual, is it on Pg. 132, "Throttle valve clearance check and adjustment"?

Anyway here's the pic (not shiny ):

DCmina

The movable part of the throttle doesn't touch the little screw. There's like 1 or 2 mm of space between the two.

Do I have to remove the air duct to see the throttle plates?

DCmina

The throtle cable is the very thin cable at the back of the motor right?
Well I can move it up a lot, but then I don't see anything move.

Are the inversed U thingies supposed to be up? Mine are upp all the way. If I push'em down they just go back up.

HAILERS

The accelerator cable(throttle cable) is on the other side of the throttle body that is shown in the picture. Its connected to your foot pedal. Have someone step on the accelerator pedal while you feel with your fingers between the throttle body and the firewall.
Looking at the picture, I can see your throttle is jammed to the open position. Can you grab the movable part of the throttle and with your fingers move it toward that small screws bottom?
On page 132 they show a graphic of the throttle pedal and the cable going thru the firewall into the engine bay. Figure 11.5.
I think what I'd do if I were you. I'd start another thread explaining your problem and let this one die. I'm not helping fix the problem and most people have moved on and will not read this thread, so start another and maybe you can get some fresh views of how to find out why the throttle is jammed open.
Your tps is probably just fine, and can be adjusted like you started out, but you have to fix the jammed throttle linkage first.