2500-3000RPM High Idle
07-08-2008, 06:56 PM
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2500-3000RPM High Idle
My car is idling and staying between 2500-3kRPM steady when starting and stays there. Here is a quick rundown.. Its a 92 civic hb. I just swapped in a new d series motor cause my last one blew out. Everything is the same intake mani, I have a turbo setup, running with safc2 for right now. The trottle body cable is not tighten it is loose, i have messed with the idle screw and no changes. IV unplugged the map sensor on top the trottle bodie and no changes. I dont know how i can get the idle to go down. Please help. I am searching for similar problems, but any help is greatly appreciated.
07-08-2008, 07:08 PM
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Re: (96civic_hb)
OK, Ill try with some others I have if that doesnt work. What other sensors would affect and make the idle run so high? Pulling and loosing the trottle body cable has no affect or the idle screw.
07-08-2008, 07:17 PM
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Re: (96civic_hb)
Ok ill check the sensors out.. I just hate having the motor staying in high idle while looking.. As for the intake gasket, Its new felpro when i did the motor. Ill recheck for leaks in the hoses going to the Im
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07-08-2008, 07:25 PM
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Re: (96civic_hb)
on the FITV can i take off the two screws and unscrew it and clean it and put it back in? Or should i take off the whole unit from the IM and clean it all?
07-08-2008, 07:46 PM
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Re: (96civic_hb)
ok, Is it common for this to happen? My car was down for about 6-7 months, the blown motor complete sat in engine bay, i replaced everything to new motor once i got it. IT was idling before around 900-1200rpm
07-08-2008, 08:23 PM
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Re: (96civic_hb)
manifold gasket, that or some major vacuum leak, or, while swapping the engine, you shook the throttle body up good enough for your Fast Idle Thermal Valve to come apart, so take it apart and put it back together if it has no leaks.
07-08-2008, 08:45 PM
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Re: (96civic_hb)
hey hey.. im taking all the advice i can here lol... I finally finished the last of the suspension part inner tie rods today so its all set to drive but just have to fix high idle.. I will look at the things you all have mentioned and i will clean them.. Hope it helps, if not i know there clean and on to the next step 
07-13-2008, 02:07 PM
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Re: (turbocivic1984)
fitv
TP sensor make sure its good
bleed the anti freeze make sure theres no air bubbles in it
and make sure that the black box on the back of the motor is sealed properly
and all your hoses are good
you have all ready done everything else
TP sensor make sure its good
bleed the anti freeze make sure theres no air bubbles in it
and make sure that the black box on the back of the motor is sealed properly
and all your hoses are good
you have all ready done everything else
07-16-2008, 09:59 PM
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Re: (turbocivic1984)
Did the car you pull it off have cruise control? There is a vacuum nipple for cruise control cars. Behind The intake mani. check for one. I had same problem.
07-16-2008, 11:34 PM
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Re: 2500-3000RPM High Idle (turbocivic1984)
replace IM gasket and iacv then bleed coolant for bubbles. warm up engine and reset ecu. i just had the same problem a week ago and finally nailed it. 
07-17-2008, 02:35 PM
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Re: 2500-3000RPM High Idle (irebuild)
K, The Im is new about week old. Ill go ahead and replace the iacv... the afc2 is working because when discountted it doesnt run.. and everything else affects the car.. but when i adjust the lo and hi settings it still idles the same doesnt matter if -50 or -40... But ill go ahead and change out the sensors and bleed it to... thanks..
07-25-2008, 04:40 PM
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Re: (longshot)
I think I found the air leak.. When I was tighting down the fuel rail onto the injectors... On Two of the injectors O rings around the injector going into the intake. one side on each one O ring broke and pushed out I can hear air sucking from there and when i spray cleaner by it it idles higher.. Think thats my air leak problem? Im waiting on the O rings.. Whats that called the rubber ring?
Modified by turbocivic1984 at 5:46 PM 7/25/2008
Modified by turbocivic1984 at 5:46 PM 7/25/2008
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