Question about 1991 Honda Civic

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1991 honda civic wont start...

I have a 1991 honda civic 1.5 liter 4 door. We started having problems with it when it wouldent start when it was hot. we would sit and wait and kept trying and it would eventually start. We have replaced the fuel filter, fuel pump and it started right after we replaced the pump, the very next day we went to start it and it wont start at all. It cranks just wont start, battery has a good charge, new air filter, new radiator, not leaking gas, not smelling gas. not getting any fuel to the return side of the injector, even tho we replaced fuel filter and fuel pump. and like i said it started fine right after we put in the new pump, at 11 at night and it was about 8o degrees outside. Please help!

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  • ssfarm Jul 10, 2008

    Hi, well I was just out there and it will ONLY start if it is cold.... My husband is gone to work and i am left here for 10 days by myself to figure it out on my own. I am not car savy but not stupid either lol. It is getting a spark i know that. i had it starting right up, when it would get warm it wouldent start back up after being shut off. we would take the water hose to it and it would start up, but if it is still warm it wont start and the check engine light would come on.

  • Anonymous Jul 11, 2008

    I have a 1992 Civic, and it started doing the same thing.

  • brian c
    brian c May 11, 2010

    Well, like i said, the ignition module controls the ECM, which triggers the injectors. I would check to see if it's the old style module as a good starting point.

  • brian c
    brian c May 11, 2010

    You didn't mention if you are getting a spark or not.

    These early models were notorious for the ignition module going bad, and intermittently causing what you have described.

    When the module starts to get fail, it doesn't sense that you are cranking the engine, therefore not opening the injectors / or triggering the ignition system, nor turning on the fuel pump.

    It is located inside of the distributor, under the plastic dust shield below the rotor. If the module is beige / tan, it is the old style, and should be replaced. if it is dark grey / black, it is most likely not the culprit, and you can start looking for bad main relays, etc.

    Does it fire if you give it a sniff of starting fluid or carb cleaner?


  • Anonymous Mar 13, 2014

    I replace the fuel pump put in dry gas it cranks over but wont start

  • Anonymous Mar 17, 2014

    1997 honda will cut ot has had new batterie fuel pump filter cables what else

  • Anonymous Mar 19, 2014

    it is a 2.2 four door

  • Anonymous Mar 31, 2014

    wont start fuel pump new relay new filter new

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  • Honda Master
  • 331 Answers

Try checking the main relay



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Posted on Jul 10, 2008

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I had the exact same problem - the solution is to replace the main relay (or just run a soldering iron over it's contacts). I have a '91 Honda Civic Hatchback and it now runs beautifully after I retouched the solder on the circuit board of that relay.
http://www.marklamond.co.uk/tech-honda/pgm-fi/main-relay/main-relay.htm
http://www.askmehelpdesk.com/cars-trucks/91-honda-civic-main-relay-11244-2.html

Posted on Jul 14, 2008

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Well i have the same problem in my 1991 honda civic and its the Main Relay Module. Its a smiple fix. its under the dash on the drivers side. you can only get the part from honda.

Posted on Oct 18, 2008

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Its most probably the igniter inside the distributor. my 91 did the same thing until i replaced the igniter. now, no problem

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