»mein s2000 läuft unruhig :(

Kann auch IACV ventil sein... fals der motor sowas hat

See the item with the circle...that's the IAC:



Unplug the socket and unscrew the two 10mm bolts. The IAC will swing away from the manifold.

What it looks like when removed...careful with the rubber gasket around the edge.

Spray the roller valve and chambers with brake cleaner or carb cleaner. You can also gently use a tooth brush, but be careful no bristles are left in the chambers.



A little oil on the rubber gasket before reassembly is a good idea. Just get your finger wet and run it over the gasket. You just want to get the gasket moist, not dripping.

Then screw the bolts back in (DON'T over torque...these are only 10mm bolts so they don't need wrath of God torque or they will break...as we've seen one owner do).

Plug the socket back in...it can be a pain when the rubber sleeve gets in the way.

You're ready to go.

If you are having trouble with the socket here is an alternative sequence to remove the IAC thanks to gospeedgo1:

1. move clips for coolant lines that are on the IACV
2. loosen the two 10mm bolts holding the IACV on
3. now you can pull the IACV up and easily pull back the rubber plug shroud and unplug the
connector (press bottom of plug)
4. hold 1 coolant line and IACV and twist them in opposite directions
5. repeat for other coolant line
6. clean IACV

Mach mit!