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pcelenta
Joined: 16 Feb 2007
Posts: 546
Location: long island,ny
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 Posted: Tue Jun 25, 2013 5:17 am Post subject: oscillating idle S1 |
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| changed most of the vacuum hoses on the 1980 s1 I picked up. car runs well...but did notice that it has a bit of an oscillating idle when warm. was thinking leaky injectors or bad injector pattern...leaky cold start valve. any thoughts? |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Tue Jun 25, 2013 10:34 am Post subject: |
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Don't forget leaking throttle body shafts.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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Carrera RSR
Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
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| Posted: Tue Jun 25, 2013 5:45 pm Post subject: |
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Don't discount an air leak issue completely which will affect idle and if only a small leak will not be noticed when driving. TB and idle screw O rings? All vacuum hoses and elbows?
_________________
1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
Now www.924board.org/viewtopic.php?t=34690
Then www.924board.org/viewtopic.php?t=31252 |
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pcelenta
Joined: 16 Feb 2007
Posts: 546
Location: long island,ny
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| Posted: Wed Jun 26, 2013 1:56 am Post subject: |
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| thanks guys. I think there are a couple of hoses I missed...and I certainly didn't think of those tiny o-rings at the throttle body. More work to do! will have to wait as I get #99 turbo to the media blaster and then body shop. check out my updates on that car in another post. |
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