# idle at 1200rpm **URL:** \ **Category:** SON240sx Automotive\ **Created:** [March 24, 2004, 12:16am UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764 "2004-03-24T00:16:27Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\ **Post date:** [March 24, 2004, 12:16am UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/1 "2004-03-24T00:16:27Z")
i just install my s13 sr20det, but it was idle at 1200rmp, anyone can help me out to lower the idle? thanks! ---
**Author:** ![1gq2nv](https://avatars.discourse-cdn.com/v4/letter/1/7feea3/32.png) [@1gq2nv](https://forums.speedlife.net/u/1gq2nv)\ **Post date:** [March 24, 2004, 6:11am UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/2 "2004-03-24T06:11:27Z")
Adjust your TPS… I had the same problem after I cleaned my throttle body… didn’t put it back on properly. DRE ---
**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\ **Post date:** [March 24, 2004, 7:23am UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/3 "2004-03-24T07:23:04Z")
where is the TPS? how to adjust it? thanks! ---
**Author:** ![Pavel](https://avatars.discourse-cdn.com/v4/letter/p/a4c791/32.png) [@Pavel](https://forums.speedlife.net/u/Pavel)\ **Post date:** [March 24, 2004, 7:30am UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/4 "2004-03-24T07:30:15Z")
there is a screw between 2nd and 3d intake manifold pipe… (near the valve cover)… adjust that one ---
**Author:** ![iQuAGoD](https://avatars.discourse-cdn.com/v4/letter/i/f05b48/32.png) [@iQuAGoD](https://forums.speedlife.net/u/iQuAGoD)\ **Post date:** [March 24, 2004, 9:38am UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/5 "2004-03-24T09:38:49Z")
Mine idles at either 1800rpm of 800 rpm… If I adjust the idle there, it idles at 800rpm or 0rpm ☹ ---
**Author:** ![Original\_Nutta](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/original_nutta/32/5474_2.png) [@Original\_Nutta](https://forums.speedlife.net/u/Original_Nutta)\ **Post date:** [March 24, 2004, 12:29pm UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/6 "2004-03-24T12:29:08Z")
Isn’t adjusting your TPS and idle just a temporary fix anyways? There is probably another problem with maybe a vacuum leak somewhere and the idle will just go up again after awhile. Screw me if i’m wrong. ---
**Author:** ![MRWmotorsports](https://avatars.discourse-cdn.com/v4/letter/m/f14d63/32.png) [@MRWmotorsports](https://forums.speedlife.net/u/MRWmotorsports)\ **Post date:** [March 24, 2004, 2:57pm UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/7 "2004-03-24T14:57:01Z")
Don’t touch the TPS unless you’ve already screwed with it, you’ll just end up chasing a different problem. TPS is not where you adjust your idle. 1- make sure the throttle body is clean (you should have removed and cleaned it as part of your install prep anyway) 2- make sure the throttle cable isn’t holding the TB open. 3- run the engine until it’s warm. Note it should idle at 1500+rpm until it’s warm. 4- adjust the idle at the AAC (?) valve, between cyl 3 and 4 intake runner, big screw, should be 700 - 750rpm. Note: before you adjust the idle you should ensure the timing is correct. -Martin. ---
**Author:** ![oshiet](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@oshiet](https://forums.speedlife.net/u/oshiet)\ **Post date:** [March 25, 2004, 2:14am UTC](https://forums.speedlife.net/t/idle-at-1200rpm/80764/8 "2004-03-25T02:14:11Z")
Martin’s right - Don’t screw with the TPS! You can do more damage than good, like cause the throttle plate to stick closed.