It could also be the a/c compressor. I have the same idle problem and that's what's causing it. Does it only happen if your heat or air is on? After trying all the things you tried, I still had the same problem, and then realized it only happened when the heat was on. Just an idea...
hap[pends no matter how much of anny accesorie is on or off.. im thining it must be my thorttle body and its not closing properly has to be... what are some aftermarket thottle bodys i could look into getting? i cant seem to find a used one around...
yea they are nice, but pricey. I've heard off and on stuff about the bbk and pp throttle bodies. Look on ebay and they have some nice selections at times and i know there are people on there that sell port and polished t/bs also.