Question about 1993 Honda Civic 4 Door

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Hey, for some reason when i start the car the revs seem to vary in 500revs every second.... do you have any ideas why?

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  • officer55 Aug 22, 2008

    Hi, My 98 honda civic is reving up and down itself aswel. When I start it it goes to about 1400rpms (even when warm) and after a run to the shop or so it starts to go up to about 1600rpm then drops to 900rpm then up again and down and so on.???? can you help?

  • newangel1974 Aug 25, 2008

    I have kind of the same problem, except that symptom occurs when my car is in park, if I press on the gas, the idle goes crazy, going up and down up and down....It doesn't idle smooth when I rev the motor up. But, when I am driving it doesn't do it. What could it be?

  • ron_bane5 Sep 27, 2008

    1991 accord idle up and down from 1000 rpm to 2200 rpm in park and while driving.......any fixes

  • zipnpup Oct 26, 2008

    I have the same problem. My car is a 1993 Honda Civic LX 4-Door. What would be the method to troubleshoot? Can I just remove the battery cables to reset the computer? Would that be a way to start troubleshoot?

  • brunny123 May 11, 2010

    the idle goes up and down until it is warmewd up



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1993 civic 1.6

Posted on Nov 04, 2008

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If you are saying that the vehicle idles up and down every few seconds, then the computer is searching for the correct idle speed. A common problem would be a faulty Idle Air Control motor. If you can clarify the problem and give me a little more info about the vahicle ie. year, make, model. I will try to help you further

Posted on Aug 20, 2008


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Ill stat with the mechanical problem. If it seems to be stuttering under hard acceleration it is likely in need of new spark plugs, wires, and blasting caps (or distributor caps... seems to vary in name from manufacturer to manufacturer.) This is the most likely solution and the cheapest even though a full swapout will run you about 300+ labor if you cannot change spark plugs yourself. It is very possible to do but you shouldn't undertake the project unless you are prepared and knowledgeable.
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