Erratic Idle

[speed]

When the car starts, it idles fairly high, then dips back down, then up down up down up down up down.. you get the idea. When you give it just a little bit of throttle it holds RPMs steady... only at idle does it bounce around.

We were thinking vacuum leak. Any other idears?

 

[Ds650rida]

vaccum leak sounds right, mine was doing the same.

 

[viperkillertt]

Also can be one bad plug. I had that issue with one bad plug. I still have a wacked out idle. It goes between 1300 and 800 depending on, well nothing. It just moves all around.

 

[ma71tt]

u could try checking your ecu for any bad capacitors, u could also try and see if cleaning the idle speed control valve would help, it gets stuck sometimes. I had the same problem with mine. does it sometimes get stuck at a certain rpm?