Idle Adjust Screw not Adjusting Idle

Post by **travis** » Wed Nov 27, 2002 5:03 pm

My idle adjust screw only seems to adjust idle in the increasing direction (i.e I can set idle at 1000, 1200 etc.) but does not go lower than about 800. I realize that ideal idle is 750 but the idle stays at that rpm for about 2 rotations of the screw until I finally have it screwed all the way in? Any ideas?

Post by **ninjak84** » Wed Nov 27, 2002 5:03 pm

I'm pretty sure there's a minimal idle the car has. I don't think it goes below 750 when the engine is cold. I know my engine idles at 500RPM when it is fully warmed up and running. What I'm trying to say, is if you start it in -30 weather, it will idle around 1,500.After about ten minutes of driving or so, it'll start to idle around 500.

Make any sense...?

Post by **travis** » Wed Nov 27, 2002 5:03 pm

Thanks for the reply. Problem is, i live in southern california...the temperature was about 75 or so today....it doesnt really get that cold so i dont think temp is the problem...

travis

Luke · Post by **Luke** » Wed Nov 27, 2002 5:03 pm

One thing it could be is that your throttle cable is tight enough that it isn't letting the throttle close more when your adjust the idle screw down. Try loosening your throttle cable ? Just a guess..

Post by **Dattebayo** » Wed Nov 27, 2002 5:03 pm

it sounds like you should replace your iac valve (the valve that the idle screw is on). the car could act sluggish as a result from this as well. try this only after you check cable tension.

Post by **travis** » Wed Nov 27, 2002 5:03 pm

thanks for the input. I'm gonna spend some time on it this weekend...hopefully one of these ideas will fix or I see something else that needs replacing.thanks

Post by **ninjak84** » Wed Nov 27, 2002 5:03 pm

Haha! I should have read where you were from...my bad!One of my friends used to live in California until he was 17, and he said he never even saw snow before...His first winter in Canada caused him 4 accidents, and he drives an AWD Subaru!!

Post by **tiger** » Fri Jan 06, 2006 6:01 am

Luke wrote:One thing it could be is that your throttle cable is tight enough that it isn't letting the throttle close more when your adjust the idle screw down. Try loosening your throttle cable ? Just a guess..

what in the world are you talking about... that is not how it adjusts the idle... WOOOOW!!!!

Idle Adjust Screw not Adjusting Idle

Idle Adjust Screw not Adjusting Idle

Re: (Luke)

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