Question about 1991 Honda Civic

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Engine light comes on and vanishes when goin 30-45 mph

I have 1991 honda civic dx. last week the engine light came on and the engine totally turned off. after about 2mins the car started up fine with no check engine light. i replaced the oxygen sensor, pcv valve, air filter and fuel filter Result: the check engine light comes on for a split second and dissappears when i'm going 35-45 mph. Any suggestions?

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  • teahou May 11, 2010

    The best thing will be to have a tech read the code, then we will have something to work with. Shop around, some shops will do it for around $50. There are parts stores that offer a free code reading service but usually cant do it on anything older than 1996.

  • yadayada
    yadayada May 11, 2010

    very poss u have no spark, check it.



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Have a tech find out the code. Its probably the distributor. If it has never been changed out, its the likely source. Had the same problem intermitently for about 2 months. The I took the negative off the batter to do something and put it back on. The car started but rough and the check engine stayed on from that point on. I took it in and they told me it was a code 8, which is the top dead center position sensor, which is a part of the distributor. Can't change it separately, have to swap out the distributor. Checkers has a the best buy on that 178 for the 1U and 189 for the 18U includes cap and rotor. Anyway, hope this helps.

Posted on Feb 09, 2010

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I have the same car and the same year, i have read all blogs from honda web site and seem to be a common problems between 1989 to 1993, no one seem to know how to solve the problems. I just bought the car few days ago and truly upsetting this problems giving me a major head ache. i have read some have spent 500 to 1000 buying and replacing parts trying to tackle the issue and taking advice from other guessing the problem; and im not doing it, Its something simple causing to trigger that light, im also puzzle.

Posted on Jun 20, 2009


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