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Registered
Join Date: Oct 2004
Location: Midlothian,VA
Posts: 280
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idling issue
86 944 n/a 120k
recently aquired car. sitting 1.5 years. Got it started. Runs well "except" and there is always an except, the idle is all over the place. Sounds like the car wants to rev itself. Starts around 1k then pops up to about 1.7k then back down and then up and so on. I might add this to the equation. Upon start the idle hangs at about 1k or so for a minute or so and "then" we have this up and down stuff. Any suggestions: injectors, vac leak, sensors, etc and so forth. newby |
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04-28-2005, 04:16 PM
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Join Date: Dec 2001
Location: Cordova, TN
Posts: 1,222
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Timming or vacuum leak would be my guess.
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Roger Hall 81 924 N/A Some people are like Slinkies. Not really good for anything, but you still can't help but smile when you see one tumble down the stairs. |
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04-28-2005, 04:25 PM
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o2 sensor possibly? Mine was old & gunky and caused rough idle.
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1983 944 - Sable Brown Metallic / Saratoga / LSD : IceShark Light Kit |
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04-28-2005, 05:13 PM
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Join Date: Jun 2003
Location: Phoenix, AZ
Posts: 1,327
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sea foam, techron fuel additive, a tank or 2 of chevron sul.
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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04-29-2005, 08:51 AM
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Registered
Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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Hunting idle.
2 possibilities. TPS (throttle position sensor) - set incorrectly/ faulty ISV (idle stabilizer valve) - gunked up/ faulty
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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04-29-2005, 10:38 AM
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Join Date: Oct 2004
Location: Midlothian,VA
Posts: 280
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anyway to test the tps and isv before I pluck bucks down.
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04-29-2005, 08:53 PM
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1983 Porsche 944 2.5 NA
