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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If the engine revs up with no increase in speed, your clutch is slipping. Probably the reason the car was sold!

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Hi
I too have a 96 mustang GT. Congrats on your new car!

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.
Other problems could stem into needing to replace the intake manifold and could possible be linked to a exhaust manifold leak although this would be more prevelant under all throttle positions.

As for driving standard remember that it will take time. I honestly recomend swithching the stock shifter to a aftermarket short shifter if you havent already. The stock shifters in the GT's are very long and quite vague. Americanmuscle.com has a shifter i can really recomend which costs about 90 dollars with the gasket. I recomend it because it is the cheapest option and being 17 doesnt generally come with a lot of money.
Actually mastering maunal transmissions takes time that all. Just make sure that you are smooth with the gas and clutch during shifting and make it as fluid as possible. Remember that you are matching the revs of the new gear with the speed of the engine (so if your doing 50mph in third your revs are roughly 2600, when you shift for fourth your revs will be 2000) To make the shift as smoothe as possible and to start to understand your transmission you can always try to let off the clutch when the revs fall to 2000. Once you start thinking about shifting the skills to rev match downshifts, heel and toe, and even powershift will come in time.

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