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Old 03-05-2006, 02:47 AM   #1
Impr3zy0u
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Member#: 93404
Join Date: Aug 2005
Location: MI
Vehicle:
2002 WRX
Aspen White

Default Crappy idle when cold.

So my other thread was kinda off track so i deceided to start another. So i cant seem to figure out my idle issue. But the car idles really rough when its warming up in the morn. The car will shake around and idle rough untill it is completly worm, then it seems to smooth out. My buddy looked at all the sensors on his data logger and eveything looked ok "that was when the engine was warm and idleing ok though". So far i have swaped the MAF and IAC with my sisters WRX with no difference, and i also checked around for vacume leaks with starter fluid, and put in a brand new front o2 sensor, still idles horriable when warming up. One of my friends suggested maybe the coolent temp sensor is bad, if thats so would the sensor on my dash not work, because it seems to show the engine warming up as usual. Any ideas im lost and need to figure this out. I guess the next step would be to compression test it and swap the plugs "even though they only have like 5k on them". Only mods are a turbo-back. Stock intake and such.
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Last edited by Impr3zy0u; 03-05-2006 at 12:01 PM.
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Old 03-05-2006, 04:36 AM   #2
23b_Rex
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http://dictionary.reference.com/search?q=worm

when's the last time you changed your oil
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Old 03-05-2006, 12:00 PM   #3
Impr3zy0u
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about 600 miles ago, why?
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Old 03-05-2006, 12:05 PM   #4
Hondaslayer
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Check the turbo inlet hose, I have seen those crack before, but they usually trigger a lean misfire though.
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Old 03-05-2006, 12:27 PM   #5
Impr3zy0u
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I sprayed starter fluid all over the hoses and nothing, im going to be doing a compression check soon.
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Old 03-07-2006, 08:40 PM   #6
Impr3zy0u
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compression results: 150, 150, 150, 150

Last edited by Impr3zy0u; 03-08-2006 at 02:22 PM.
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