throttle sticking

[headsup7up]

i noticed the car started to spudder and the idle would drop down, i figured it was just cause the car did completly warm up so i continued on only to find that the car seemed to be making 80hp at times and ran normal at other times. when i pulled over and let the car down to idle the rpm would drop almost to 0 then come back up, then back down. now when i start the car it stalls out unless i keep it runing buy giving it gas. after a little while of this it will go to idle and run fine but when i hit the gas again it surges. also i installed a afc the other day but did not change any settings (because i dont have a wideband). all the wires are right and none are touching. i also acidentally put 89 oct in my car the other day but i dont think thats the problem because it should pull enough timing to not make a difference. last night some friends came buy and we worked on the car, we thought we fixed it because it went to idle when i started it and it reved up normally. we still dont really know the problem but it seemed to work ok when i took the afc out. this morning when i went leave for school the car started up fine but when i went to back it out of the garage the rpm stayed up. wheni hit the gas again it just went up higher, so i tunred the car of and then back on. when i did this the car ran like crap, it seemed like the timing was very wrong. it was poping and the idle would drop really low again. i already am missing my classes for today so any sugestions will be tried as soon as i see them. also there was no boost leaks.

 

[silver bullit]

You can try to spray some lube into and on the cable and try to get it to spray it down into the cable where the openings are.

Or you can replace it.

 

[crimsondragon]

It doesn't sound like your throttle is sticking. More like your idle is being @#$@@# around.
Use this to fix your problem.
http://www.dsm.org/how-tos/tttt/tttt3.html