[Tiburonjke]

Wondering if anyone has run into this before. I did a tune up on my 06 Tiburon GT this weekend (plugs, oil change, air filter and serpentine belt). Now the car idle tends to stick at around 2000 rpm (sometimes 2500). I can tap the throttle with my foot and generally get it to idle down, but other times it takes about 45 seconds or a minute for it to idle down on its own. I checked for vacuum leaks, pinched hoses, unplugged hoses and have found nothing. No lights are on on the dash (check engine, etc..) It did this one time about 6 months ago, but by the time I got the car home it had quite doing so and hasn't again until after the recent tune up.

Appreciate any advice anyone may have.