annoying rev when stopped...?

[KBHatch]

For the past few months i have noticed whenever i come to a stop at like a red light or something my engine will start revving to like 2,000 rpm's. Sometimes it will just hold at 2,000 until i start going again and other times it will drop to like 1,000 or something and keep bouncing back and fourth. Any one have this issue before?

[Silvercard]

IAC or Vacuum leak may be the cause.

http://www.ephatch.com/forum/showthread.php?43337-Cleaning-the-IAC

[Euro-Yellow-Ep3]

Also check to see if u have air bubbles in the coolent, take of ur radiator cap and let the car idle until completely warm. hope this helps

[talonXracer]

An air bubble in the coolant will have absolutely nothing to do with that idle issue, they are entirely divorced systems.

A vacuum leak is the issue, check the IAC by removing the intake tract, and on the floor of the TB there is a square hole, start the car and place your fingers over the hole and see if you can settle the idle, if so it is the IAC that needs cleaning/replacement$$$

If that chedoesnt help, check the few vacuum lines there is, starting with the AAV and then go to the PCV line and check that.

[KBHatch]

Thanks for the help I'm gonna mess with it tomorrow and see if i can fix it.

[apexracing]

my accord did this when the intake manifold gasket had a leak.

[Drunken Yak inc]

Similar thing happened to me, cleaning the IAC worked like a champ. If I'm not mistaken, there is a DIY somewhere on this site.