NA Motor Discussions regarding N/A KA24E, KA24DE, and SR20DE

messed up idle. any ideas?

Old 06-01-2008, 08:03 PM
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messed up idle. any ideas?

Hey ya'll,

I drive an 89 s13 and everything is stock. My idle likes to float at around 2K every now and then... Sometimes my car will idle like this for the time that I'm driving and sometimes it only lasts a couple of minutes and then subsides.

I've tried cleaning the temp sensor... (i think thats what its called) The way I understand it, is this sensor tells the ecu when the engine is cold and to bring the idle up a bit for warm up... is that right?

Any ideas anyone?

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Old 06-01-2008, 09:14 PM
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check for vacuum leaks
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Old 06-01-2008, 09:33 PM
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the temp sensor could cause a higher idle but not to that degree, a vacuum leak depending on it's origin would more likely than not cause the problem at all times and not dissipate. i wouldn't rule out a vacuum leak but i'm more inclined to believe it's the iacv.
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Old 06-02-2008, 09:49 AM
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ya its prob iavc, you can run some intake cleaner through the line. and re adjust it.
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Old 06-08-2008, 04:53 PM
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thanks a bunch fellas.
everything worked out great.
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