Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

Random Idle- Lingering Idle

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Old 12-03-2011, 06:39 PM
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Default Random Idle- Lingering Idle

So, my car idles pretty crappy most of the time, basically it idles alright, but when im driving, im accelerating, clutch in, the RPM doesnt drop.. for a while. Sometimes, it goes up when i clutch in.

I have a feeling its vaccume related.. any other thoughts?
 
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Old 12-03-2011, 07:22 PM
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Sticky throttle body?
 
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Old 12-03-2011, 07:33 PM
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Either that or a sticky throttle cable....?
Or IAC may need some cleaning
 
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Old 12-03-2011, 07:45 PM
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MAtt01, mine does too. I read Lucky talking about it with tunes and how long to have it hang. I would guess its adjustable. My ARD tune hangs longer than my IPD tune. The IAC will do the same thing though so MattyXXL has a point. If its always done that since the manual swap then thats probably how it is. If it has changed then probably a part.
 
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Old 12-03-2011, 08:21 PM
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So, just a question, not trying to jack this tread but, are there not any manual T5's from Volvo OEM? 850's I mean.
 

Last edited by rspi; 12-03-2011 at 08:21 PM. Reason: addition
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Old 12-04-2011, 10:53 AM
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well, i have a stock ECU right now, and probably what you guys are referring to is the auto-manual tune. I find that when you put an auto tune in a manual car it lingers a little..

I even bought a second IAC and changed it after cleaning my original one didnt help. Maybe i'll give it a second look.

Maybe i'l disconnect the battery and let the car reset itself, maybe that's all it is..


I live in canada, so my car is an 850 AWD, they all came in manual, but there are also T5 + R's in canada original manual.
 
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