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02-07-2008
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#1 (Post Link)
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AO Member
Join Date: Jul 2008
Location: gloucester
Posts: 75
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rough idle
hi i got a 2.5 v6 156 and it idles quite rough sometimes i was wondering if anyone had any suggestions cheers
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02-07-2008
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#2 (Post Link)
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Club Member
Club Member Number: 217
Join Date: Sep 2007
Location: West Cork
Posts: 681
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Re: rough idle
Throttle Reset ?
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02-07-2008
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#3 (Post Link)
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AO Silver Member
Join Date: Jan 2006
Location: Near The Seashore
Posts: 1,067
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Re: rough idle
Originally Posted by v6 animal
hi i got a 2.5 v6 156 and it idles quite rough sometimes i was wondering if anyone had any suggestions cheers
I have the same problem at the mo with my v6 gt. Been in the garage twice now and still not fixed it!! 
Whats this about a throttle reset then? 
Cheers Kev  |
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02-07-2008
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#4 (Post Link)
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Club Member
Club Member Number: 217
Join Date: Sep 2007
Location: West Cork
Posts: 681
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Re: rough idle
One of the other Irish guys was having similar probs with his Twinny and I told him to look up Throttle Reset on the forum.
He tried it last night and it solved his problem. |
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03-07-2008
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#5 (Post Link)
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Club Member
Club Member Number: 342
Join Date: Dec 2007
Location: belfast
Posts: 1,736
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Re: rough idle
key to 'MAR' setting in ignition (lights on dash lit) 90 seconds
key to off 90 seconds
engine running 15 mins DO NOT TOUCH THROTTLE
take for a spin after
chance this will help, otherwise throttle body/ idle sensors etc etc need checked
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03-07-2008
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#6 (Post Link)
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AO Member
Join Date: Jul 2008
Location: gloucester
Posts: 75
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Re: rough idle
ok cheers i will give it a go
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03-07-2008
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#7 (Post Link)
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AO Silver Member
Join Date: Apr 2007
Location: Co. Cavan, Ireland
Posts: 2,228
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Re: rough idle
just wondering can anyone tell me is this throttle reset for ALL Alfas or only the 156s?
just out of interest.
thanks,
Phil
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03-07-2008
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#8 (Post Link)
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AO Silver Member
Join Date: Jan 2006
Location: Near The Seashore
Posts: 1,067
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Re: rough idle
Tanks...I`ll try that later. Kev
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04-07-2008
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#9 (Post Link)
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AO Member
Join Date: Jul 2008
Location: gloucester
Posts: 75
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Re: rough idle
tried the throttle reset no luck what next????
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04-07-2008
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#10 (Post Link)
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AO Silver Member
Join Date: Jan 2006
Location: Near The Seashore
Posts: 1,067
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Re: rough idle
Same.....whats the next step?
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05-07-2008
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#11 (Post Link)
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AO Platinum Member
Join Date: Apr 2006
Location: North Yorkshire
Posts: 13,376
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Re: rough idle
Check your intake pipes between the throttle body and the MAF. A hole/crack somewhere will screw up your idle.
Check the lid of the airbox is secured properly to the rest of the box.
Does the car stall without any throttle, or is it just rough? Rough when hot/cold/both?
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05-07-2008
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#12 (Post Link)
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AO Silver Member
Join Date: Jan 2006
Location: Near The Seashore
Posts: 1,067
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Re: rough idle
Both with mine...but runs smooth when the fan cuts in and rough when the fan goes of again. Runs smooth first thing in the morning when the automatic chokes on as well, but does not stall.
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05-07-2008
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#13 (Post Link)
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AO Platinum Member
Join Date: Apr 2006
Location: North Yorkshire
Posts: 13,376
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Re: rough idle
Originally Posted by Bodgit
Both with mine...but runs smooth when the fan cuts in and rough when the fan goes of again. Runs smooth first thing in the morning when the automatic chokes on as well, but does not stall.
Have you checked the air filter? The fan thing is weird.. Wonder if it could be battery voltage related? |
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05-07-2008
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#14 (Post Link)
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AO Silver Member
Join Date: Jan 2006
Location: Near The Seashore
Posts: 1,067
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Re: rough idle
Just spent had it serviced at a AR dealer, they would have replace that wouldn`t they? I`ll have a check and mke sure its cliped down proberly and theres no holes/cracks or splits on the intake pipes etc...
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05-07-2008
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#15 (Post Link)
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AO Member
Join Date: Sep 2007
Posts: 248
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Re: rough idle
could it be the idle control valve some1 with more experience should know
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05-07-2008
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#16 (Post Link)
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AO Platinum Member
Join Date: Apr 2006
Location: North Yorkshire
Posts: 13,376
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Re: rough idle
Originally Posted by amir_salami
could it be the idle control valve some1 with more experience should know
V6s don't have them as they have an electronic throttle.. I wonder if the EGR valve is open at all though, that would make an idle dodgy.. |
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