# Idleing Problem **URL:** \ **Category:** SON240sx Automotive\ **Created:** [March 12, 2005, 5:18pm UTC](https://forums.speedlife.net/t/idleing-problem/84213 "2005-03-12T17:18:04Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![JDMRIDE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdmride/32/5501_2.png) [@JDMRIDE](https://forums.speedlife.net/u/JDMRIDE)\ **Post date:** [March 12, 2005, 5:18pm UTC](https://forums.speedlife.net/t/idleing-problem/84213/1 "2005-03-12T17:18:04Z")
Hi guys, I have a problem with the idleing on my ka. Its all over the place and doesnt sounds too good. I herd it might be the IIAC, I do have another spare complete intake assembly. What do you guys think it is and how hard is it to fix? Thanks in advance :lol: ---
**Author:** ![DarkForceJackal](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)\ **Post date:** [March 13, 2005, 6:46am UTC](https://forums.speedlife.net/t/idleing-problem/84213/2 "2005-03-13T06:46:06Z")
More details… How does it drive on the road? What does it idle at, or vary to and from? When, cold/hot/always? Could be a lot of things. When my coolant temp. sensor went, it did the same type of things, could be that…but yeah, details please! ---
**Author:** ![JDMRIDE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdmride/32/5501_2.png) [@JDMRIDE](https://forums.speedlife.net/u/JDMRIDE)\ **Post date:** [March 13, 2005, 10:08am UTC](https://forums.speedlife.net/t/idleing-problem/84213/3 "2005-03-13T10:08:28Z")
Ok, so when I crank it the rpms jump to about 1500, then while its idleing its jumps up and down a bit, then once i start driving the idle jumps to about 2000. It seems to be the same with its hot and cold. Let me know if thats enough info, sorry if thats a bad description. Icould allways try to make a little video to show you guys what i mean. Thanks! ---
**Author:** ![JDMRIDE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdmride/32/5501_2.png) [@JDMRIDE](https://forums.speedlife.net/u/JDMRIDE)\ **Post date:** [March 13, 2005, 12:13pm UTC](https://forums.speedlife.net/t/idleing-problem/84213/4 "2005-03-13T12:13:23Z")
Sorry, I just went out again and noticed that it does get a little better once the engine is up to temp. It actually goes down to like 1-1.5k but once i open the throttle once then it stays up at 2k for a while before it starts to fall again and then the ruff idleing starts. ---
**Author:** ![Jay\_Nismo](https://avatars.discourse-cdn.com/v4/letter/j/c37758/32.png) [@Jay\_Nismo](https://forums.speedlife.net/u/Jay_Nismo)\ **Post date:** [May 16, 2005, 12:49am UTC](https://forums.speedlife.net/t/idleing-problem/84213/5 "2005-05-16T00:49:23Z")
mine kinda does the same thing, but it doesn’t matter if it is hot or not. I checked the CAI cone, vacuum lines, coils, I advanced it that seemed to help a bit, but it feels sluggish when I take off. Were you able to solve the problem with yours?? ---
**Author:** ![hannman](https://avatars.discourse-cdn.com/v4/letter/h/ee59a6/32.png) [@hannman](https://forums.speedlife.net/u/hannman)\ **Post date:** [May 28, 2005, 10:21am UTC](https://forums.speedlife.net/t/idleing-problem/84213/6 "2005-05-28T10:21:44Z")
HEy guys, Have you checked your coolant temp. sensor??? I had the same problem and after pulling the sensor connector and cleaning out all the erosion everything was back to normal:-) I had my ECU scanned and it said the CTS signal was outta range. The sensor is just behind the rad - follow the coolant hoses, shouldnt be too tough to find. I think this and Vacuum leaks are the most common poor idle culprets. GOOD LUCK ---
**Author:** ![syd\_mysta](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/syd_mysta/32/5488_2.png) [@syd\_mysta](https://forums.speedlife.net/u/syd_mysta)\ **Post date:** [May 28, 2005, 11:20am UTC](https://forums.speedlife.net/t/idleing-problem/84213/7 "2005-05-28T11:20:10Z")
check your MAFs I have one if you need it. If you drive a SOHC. It may be loose or unworking proper