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| Dodgy Idle - Common problem? https://www.fiesta-si.com/forums/viewtopic.php?f=4&t=14654 |
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| Author: | Mulv [ Fri Mar 06, 2009 6:15 pm ] |
| Post subject: | Dodgy Idle - Common problem? |
Hi guys, my newly aquired Si runs pretty perfect, other than that at idle the revs are up and down a bit and sometimes struggles to keep ticking over, and also it has stalled pulling up to a junction or two. Is this a common problem? And is it easily solved? |
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| Author: | onslack [ Fri Mar 06, 2009 6:50 pm ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
to me it sounds like your ISCV needs a clean, your ISCV sits under your throttle body on your inlet manifold, you'll need to unbolt it and clean it with carb or brake cleaner, when its off spray a load into the ISCV and leave it too sit for about 5 mins then repeat again, then re-fit  , might as well clean your maf while your at it viewtopic.php?f=16&t=3171 
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| Author: | Mulv [ Sat Mar 07, 2009 9:19 am ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
Cheers dude, I think I'm gunna aquire myself a haynes manual in between now and my next day off and get that done! People are well helpful on here! Ta! |
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| Author: | jonosi [ Sat Mar 07, 2009 11:11 pm ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
| Author: | Mulv [ Sat Mar 07, 2009 11:51 pm ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
Cheers mate! |
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| Author: | Fezzyzetec [ Sun Mar 08, 2009 11:34 pm ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
revs up and down deffo sounds like lamda m8 cause erratic fuelling on idle had it with my 2.0 before unplug it see if it changes |
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| Author: | Mulv [ Mon Mar 09, 2009 8:45 am ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
I'll give that a go, you mean just unplug the connector? |
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| Author: | onslack [ Mon Mar 09, 2009 9:37 am ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
i had a lambda issue once and if let my car go under a certain rpm it would cut out and die  , replaced the lambda and it sorted that issue outbut yeah just unplug it, the connector should be on some clips on the slam panel under the rad( looking from underneath the car) |
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| Author: | Mulv [ Mon Mar 09, 2009 12:47 pm ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
Nice one, I'm building a list of things to do when I get the car back lol. Clean MAF sensor. Clean ISCV. If theres still problems unplug the Lambda. Buy and fit clear side repeaters. Fit lowering springs. Fit FSi Stickers. I'm well excited lol. |
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| Author: | Dave G fsi [ Fri Mar 13, 2009 7:53 pm ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
Mine does exactly what you have described mate, when the engine is cold it sometimes struggles to stay ticking over and has stalled at junctions a couple of times. Let me know how you get on and what fixes the problem. 
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| Author: | Mulv [ Fri Mar 13, 2009 11:38 pm ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
I cleaned the maf and the iscv, nothing much different. Unplugged the lambda and started it up, I'm not sure if it made any difference because I didn't actually drive anywhere, would it be safe to drive for a bit with it unplugged? Just to see if its that? |
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| Author: | Dave G fsi [ Sat Mar 14, 2009 11:47 am ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
Not sure if it would be the lambda anyway. I've got a brand new one on mine and it still does it anyway 
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| Author: | Mulv [ Sun Mar 15, 2009 10:07 am ] |
| Post subject: | Re: Dodgy Idle - Common problem? |
Yeah see I don't want to go forking out like 60 quid for a sensor then the problem still be there. |
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