high idle

[josephg15]

my sr20 has a high idle...about 1300rpm...i have no clue...does nissan have a idle control valve? what should i adjust or look at...it idles high when cold (normal) but stays high when warm...once and a while it will come down to like 800rpm...any ideas please...thanks

[S13FASTBACKSR]

Yes there is an idle air control valve (iacv) it is under the 3rd and 4th runners on the intake manifold you will see the screw it point straight up you can try that screw if it does not do anything clean your iacv with carb cleaner and if you have an air compressor hit the inside of the control valve with some air..i also took a piece of wood and put it against the iacv and hit the wood with a hammer to loosen up the carbon..try that and let us know

[ngcharleshk]

What MAF sensor do you use? I used to swap out the S13 SR20det MAF sensor for a SR20DE MAF(because my old one went out and i couldnt find a direct replacement), every since that my car just went idling at 1200 and once in a while it drops back to 800. Check to see if your MAF is intact, clean it out with MAFS cleaner. Lemme know if it worksThanks