Question about 1988 Honda Accord 4 Door

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I have a 88 honda accord with carb that i cant get to idle down

First it had a low idle and the honda would cut of and i sprayed carb spray to see did i have any vac leaks and the intake leaked i srewed the intake gasket down and it stop leaking but now it idle at about 4 to 5k so now im trying to figure out how to fix it

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  • gripp_audio Feb 14, 2009

    when the 88 honda idle low i tried to adjust it and it would idle up and down until i put the car in drive and i would run for a minute and shut off. I sprayed carburetor spray around the intake because someone told me if theirs a vacuum leak it could cause the car to run like that so when i sprayed the caruretor spray around the in intake it idle up a so i tighting the intake bolts up and now it idle at 4000 to 5000 rpms and will not idle down i backed all the way off both idle screws and its still idle high can someone tell me how to fix the problem

  • ggsmith48906 Apr 08, 2009

    I have the same problem, and in my case anyway I know what's causing it... The butterfly valve for the second barrel is sticking slightly open, causing the high idle. I can close it by either gently tapping the valve or pressing on the cam on the passenger side of the carb. Once "unstuck" and closed the idle drops to normal.



    Now if I can just keep it from sticking without having to rebuild the carb...

  • ggsmith48906 Apr 10, 2009

    Disregard my previous post. Although my 2nd barrel valve is sticking open slightly and has some effect on idling speed it is not causing the engine to idle at 4000 rpm. Neither is the idle adjusting screw or the fast idle screw.



    What exactly would keep the throttle open as the engine approaches operating temp? Anyone know?

  • justin barath May 11, 2010

    have you checked the throttle position sensor or iac (idle air cotrol) if equipped

  • justin barath May 11, 2010

    did you adjust the idle up when it was idling low

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Should be an idle adjusting screw on the side of the carburator that you can adjust to move your idle down.

-Captain Jake

Posted on Feb 13, 2009

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