I've got a 97 1.8 16v Si, the problem is it keeps near dyin on me when i come to stop!! The needle drops below 1 then comes back to live, it doesn't completely stall..yet!! It also does the same if you just tap the accelerator a wee bit!!

I've been told its the idle speed control valve and it just needs cleaned, is this right? And whereabouts is it situated? I'm told its just below the manifold???

Any help would be grateful!!
Cheers Kev