I have a 00 tiburon with catback exhaust, aem intake, new plugs/wires,

belts, clutch and battery and cables. My car is having an idling problem because

it idles a little under 1,000 RPMs and then fluctuates a little bit (I can see the red

needle moving when in neutral.) Also, the car is very sluggish upon takeoff from a dead stop.

What would be causing this problem that just started recently. I have no CEL.

I am thinking it could be a MAF, IAT, or even an Idle positioning sensor??

Help me out as it is annoying to have a sluggish running car thats hard to get up to speed......

Thanks for the help>>>>>>>>>>>

 

First thing would be to try the PCV valve, $4 from Auto Zone.
When was the last you checked/changed your oil?
It sounds like your engine may not be getting enough air, make sure your CAI is firmly in place and no leaks, particularly after the MAF. Also, be sure the air filter is clean.
Other than that I would suspect the TPS...

 

maybe TPS? or Idle Speed Actuator?