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Registered
Join Date: Oct 2004
Posts: 1
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Intermittment Idle Oscillation - 1989 Carrera
Car normally runs great. Ocassionally notice the engine will idle/rev high (2000-2500rpm) to normal (900-1000rpm) and continue to cycle, on its own, until dying out. Normally happens after about 2-5 minutes after starting...whether driving or sitting/idling. Very difficult to restart afterwards.
1989 911 Carrera, 52K miles, recently acquired had 60k service performed prior to shipping to Guam. Minimal mechanic/service/repair resources on-island, including myself. Any ideas? NEED HELP! ~joseph Last edited by husslein; 10-22-2004 at 04:09 AM.. |
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10-22-2004, 03:55 AM
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Joseph,
Do you have a 1989 Carrera or a 1979 SC? As far as I know there is no 1989 SC. Also what engine do you have, it would help us help you. Erik
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"Coffee is for Closers" "Push the button Max!!!" |
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10-22-2004, 04:02 AM
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Alter Ego Racing
Join Date: May 2002
Location: Florida
Posts: 5,553
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If its an SC (3.0 CIS) could be the fuel pressure regulator or a vacuum leak (IMHO).
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International GT Champion; Porsche GT3 Cup Trophy Champion; Klub Sport Challenge Champion; Rolex Vintage Endurance Series Champion; PCA Club Racing Champion; National Vintage Racing Champion |
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10-22-2004, 04:39 AM
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Registered
Join Date: Mar 2002
Location: So. Cali
Posts: 189
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I'm having the same problem -- except it idles high 2000 - 2300 when I start it cold and stays that way (even after warm-up). Once I turn it off and it cools a bit it idles at a normal rate.
Thoughts?
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1978 911 3.0 fully rebuilt and for sale |
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11-04-2004, 10:50 AM
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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,522
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1. Vacuum leaks,
2. Idle control valve 3. Oxygen sensor
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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11-04-2004, 11:43 AM
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1987 Porsche 911 Carrera 3.2
