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Idle question
Hello I have a 79 Porsche 911 sc that idle very high on cold start. will someone please explain to me what to disconnect. I dont want that high idle anymore. I'm a long time member here my car been park for years. and I'm about to put it back on the road. anyways thank you for your help I will report back here.
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sylvester |
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Member 911 Anonymous
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I am not sure about the SC but I think it also has a 45 second to 1 minute initial warm up idle which will be higher than normal.
How long before it settles down or does it?
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Reiver
Join Date: Nov 2011
Posts: 57,476
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You don't want to change the designed operational system...it's there for a purpose.
How high does the idle go and for how long....once it abates what is the idle when warm. You can adjust your idle by adjusting your CO at the fuel head if the mixture is off and then adjust it near the accelerator cable...the CO should be checked first (air fuel ration) if it's been sitting awhile and then the fine tuneing of the idle.
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De Oppresso Liber Strength and Honor 5th Legion |
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Registered
Join Date: Nov 2002
Location: venice ca
Posts: 928
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if you want to really fix it youll have to modify the AAR. its just a matter of removing it and knocking a pin. the mod just changes the start point of the disk inside so from cold start less air gets past it
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Jason 81 SC 97 328is 87 Jeep Comanche (RIP) |
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Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
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the hi idle is there for a reason. 1200 is about normal. unless it is above 1500 i would leave it alone.
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86 930 94kmiles [_ ![]() 88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ ![]() 01 suburban 330K:: [_ ![]() RACE CAR:: sold |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,141
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You want the engine to idle high cold to aid heating up engine as quick as possible and prevent stalling.
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