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11-18-2009, 04:47 PM
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#1 | |
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AF Regular
Join Date: Feb 2005
Location: Birmingham, Michigan
Posts: 265
Thanks: 0
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Engine Idle jumps from 1000rpms to 2000rpms, when parked, why!?
So the other day I started my car up and in the parked position the engine started jumping from 1000rpms (normal idle) to 2000rpms, it jumps up and down until I turn the car off.
If I drive the car and put it in gear then it drives its self in any gear! because it keeps jumping in RPMS... some times it will just stay steady at 3000rpms.. So I popped the hood and found that the AIR tube connecting from the short ram air intake to the engine was disconnected. I bought a new tube and it still does the same thing, THIS DIDNT FIX ANYTHING, WHAT COULD BE THE PROBLEM!?
__________________
T R U E E C L I P S E 1996 MITSU. SPYDER ECLIPSE SEAN@SERIOUS-SOUNDS.COM http://www.cardomain.com/ride/653950 
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11-18-2009, 07:53 PM
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#2 | |
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Holset powered 420a
 
Join Date: May 2005
Location: Florence, South Carolina
Posts: 4,434
Thanks: 1
Thanked 14 Times in 12 Posts
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Re: Engine Idle jumps from 1000rpms to 2000rpms, when parked, why!?
Test IAC and check for vac leaks.
__________________
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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11-18-2009, 08:22 PM
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#3 | |
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AF Enthusiast
Join Date: Jan 2005
Location: Portville, New York
Posts: 3,570
Thanks: 1
Thanked 10 Times in 8 Posts
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Re: Engine Idle jumps from 1000rpms to 2000rpms, when parked, why!?
Check your idle closed switch too, its that little wire that sits near the throttle cable on the throttle body. Make sure it is connected.
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