High idle?

[Cgeigert]

Just picked up a second s13 with SR. Runs and boosts OK but has some issues to attend to. First off is the high idle. Idles around 1800 or so. I don't recall there being a manual idle adjustment on an SR so what should I check?

[rc1honda]

Yes, there is a manual idle adjustment for the SR. It's the screw on top of the IAVC between the 2nd and 3rd intake runner. Tighter is lower idle, more loose is higher idle. Maybe do a sea foam treatment first just to clean things out a bit. Then try the adjustment screw. Or just try it and see if it helps. If not try the sea foam.
Also look for vac leaks. Vac leaks can cause a high and stumbling idle.

Here i took a picture for you. Yes i am awesome.

[rc1honda]

double post

[Cgeigert]

I've been working on all the vacuum leaks. It has a Greddy FMIC and these are the things they used to plug holes in intake and hot pipe: Plastic bottle cap, lug nut, paper towel and a bunch of duck tape. Those are tkane care of but still doing the rest. Idle is high but not really stumbling, has a bit of a misfire. Sometimes when starting it will misfire real bad and barely start before jumping up to high idle.

[Cgeigert]

When I got to it that screw looked about flush with the housing. I turned it down and got it down some, but it tried to die after revving. The BOV is to atmosphere so I think that's part of the problem, plus it's running rich.