Rough Idle
09-17-2005, 12:12 PM
#1
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Vehicle: 2001 Hyundai Tiburon
I tried to search and came up with nothing. Anyway my car has had a really rough idle lately and I was wondering what I could do to help this. My mods are: MBRP exhaust, headers, aem cai, bbtb. I have the voltage stabalizer from the BG and i thought that would help but it didnt. Hopefully you guys can help me out
09-17-2005, 05:39 PM
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I had the same problem last week and I thought about cleaning the TPS connector (plug) with some electrical connector cleaning spray, and with the advise and help of a friend I did it and not only cleaned that, but also the plug of the idle motor (behind the IM, where the big hose is connected). I also took out the idle motor (or bypass valve I think it's called) and cleaned the holes with carb cleaner.
You wouldn't beleive how good it idles now, it idles like a champ, steady at 800 rpm.
Also, a lot of black dirt came out of that little valve, I think it's exhaust gases deposits. My friend is a mechanic at the Hyundai dealer locally, so he new where to start...
fing02.gif
You wouldn't beleive how good it idles now, it idles like a champ, steady at 800 rpm.
Also, a lot of black dirt came out of that little valve, I think it's exhaust gases deposits. My friend is a mechanic at the Hyundai dealer locally, so he new where to start...
fing02.gif
09-19-2005, 08:09 PM
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is it an irradic rough idle?? or just rough, low idle?? try adjusting your idle screw pretty much all the way out... if open, it will cause less vaccum resulting in worse idle... if you rev it and then let it go down, will it want to die, or just still idle rough.. ive been having problems for past, well since i did all my mods and just fixed it, so i kinda know some tricks to fixing it...
describe how the idle is rough a lil more, maybe i can help
describe how the idle is rough a lil more, maybe i can help
09-19-2005, 08:18 PM
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Vehicle: 2001 Hyundai Tiburon
As soon as I come to a stop, the wheel shakes and the idle goes back and forth about 100 rpm. if i turn the wheel and activate power steering, it gets rougher. same with windows. when i give it a little gas its all better. could it maybe be i need a bigger alternator? i am running 2 batteries
09-20-2005, 01:04 AM
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Vehicle: Elantra HD / 2007
<div class='quotetop'>QUOTE (Ericy321 @ Sep 20 2005, 05:18 AM)</div><div class='quotemain'>could it maybe be i need a bigger alternator? i am running 2 batteries
<div align='right'><{POST_SNAPBACK}></div></div>
Why do you have 2 batteries?
stock alternator can be too small to charge 2 batteries simultoniuos.
And it's ok when you open/close windows, turn steering wheel at idle - rpm can go up and down. It's ok.
<div align='right'><{POST_SNAPBACK}></div></div>
Why do you have 2 batteries?
stock alternator can be too small to charge 2 batteries simultoniuos.
And it's ok when you open/close windows, turn steering wheel at idle - rpm can go up and down. It's ok.