Engine, Intake, Exhaust Modifications to your Normally Aspirated Hyundai engine. Cold Air Intakes, Spark Plugs/wires, Cat back Exhaust...etc.

my idle is AFU...HELP!!! *FIXED*

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Old 09-24-2004, 04:51 PM
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Default Re: Exhaust

ok i was driving home from work last night and tib was running fine till i went to park in my driveway i put it in park and my rpm stayed at like 2000 i didnt really think anything about it at the time so i just shut off the car and went to bed so i get in my car to go to work today and start it and it still idles at 2000 in park i give it some gas it boggs down, so i start driving cause im already late, and if i floor it it bogs down but if i let off a little it runs alright when i put it in neutral it does the same thing. can anybody help me?
Old 09-24-2004, 05:12 PM
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Default Re: Winterizing ur car

What mods do you have?? Do you let it warm up??

1. If you have mods, make sure to reset your ECU.

2. Let it warm up a bit and then go to work I had the same problem and as soon as I started doing that it went away. Also, before you turn off you car give it a little rev, not screaming but a little gas. This is supposed to reset you idle slightly. I did this for 5 days and this went away.

3. I know it's easy to post a question but this has prolly been covered. Do a serach.
Old 09-24-2004, 05:14 PM
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Default Re: my idle is AFU...HELP!!!

completely stock right now

i did search but did not find exactly what i was looking for found a few close things but wasnt sure if they would help

its like 86 degs outside should warming up be a prob
Old 09-24-2004, 05:14 PM
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Default Re: my idle is AFU...HELP!!!

it might also be an airleak.. if you have a CAI.. check all the connections between the MAF and the intake manifold.. also check the hoses from the head to the manifold and any vacuume hoses... as Hyundais already run rich, you idle jumped up as the fuel mixed with the extra unmetered air. It bogged because you were adding more fuel and as the engine sucked it down, it started to grab even more air from your leak...

of course this is assuming you have a leak.. is there a vacuume line between the engine the autotranny?
Old 09-24-2004, 05:16 PM
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Default Re: my idle is AFU...HELP!!!

not really sure myself
Old 09-24-2004, 05:27 PM
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Default Re: FS: 1997 Tiburon in Central NY

Hmmm......like I said, I had this problem and it seems to me that it went away when I got my IM shaved down.

I just posted this on another thread, weird. Anyway check under your hood and see if you can hear a hissing or a sucking sound. If it gets cold where your at soon, I would suggest looking into it. When we had that cold spell up here my car wouldn't start because of the leak. (Not enough fuel)
Old 09-24-2004, 05:28 PM
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Default Re: Whats Your SPEED.....?

maybe i missed it
i am work right now but would rather be driving or working on my car
thanks all
Old 09-25-2004, 02:24 PM
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Default Re: OBDII specs

Did you check the Throtle position sensor???? the acceleration cable????




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