[speeder]

How long sitting? I personally think your wasting your time or chasing your tail changing parts before you know wtf is going on. The first thing to check, ALWAYS, is whether the charging system is kicking down 13.2 volts. If it's not, (and you don't know it), you can play internet pin-the-tail-on-the-donkey for 5 cents a guess for the next week. "Changed this, changed that, still won't idle. Anyone else wanna guess?"

Don't mean to be an ***hole, this just always drives me nuts on the web. The time to seek expert advice is after you've done (or had done) a proper 15 minute diagnosis.