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#1
11-05-2009, 05:21 PM
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High Idle
Ok so, as the title states, i have a high idling issue.. however, its only when its cold. When i start the engine from a cold start it begins running at normal rpm(1500 on start-up) for a few seconds, then the idle jolts to 3,000rpm and remains there until the engine reaches operating temperature, once the engine is warm, the idle adjusts itself down to a normal steady state. Ive tested the coolant temp sensor, its good, same with the ISC. Its quite annoyting and very embarrassing...if anyone might have any ideas as to what could be causing this i would appreciate it.
Thanks, Sean 
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#2
11-07-2009, 12:15 PM
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Re: High Idle
that is a strange issue. Im not really sure what else it could be. If its idling high then extra air has to be getting into the motor from somewhere. If it was a vac leak it should effect the car at all times rather just when cold, maybe try unpluging the ISC and see if it still happens. That way there is no way it can move, I would do this to see if there is a problem with the ISC/ECU. If it still idles high then there is a problem somewhere else
__________________
98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#3
11-07-2009, 12:18 PM
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Re: High Idle
Couldnt it be a thermostat problem?
__________________
95 Eclipse GS-T 6 bolt built block - shooting for 450 hp..very doable Currently: A lot, check progression thread - updated 3/27/10 Estimated completion date: Soon lol
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#4
02-15-2010, 05:21 PM
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Re: High Idle
read this, and enjoy. a lot of info here, be ready to test it all out
http://www.dsm.org/how-tos/tttt/tttt3.html
__________________
"haze grey and under way!!!" 99 honda odyssey 99 grand prix gt possibly a g8 gt when i get to cali
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