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1993 civic won't start


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Ahasten96
Novice

Aug 27, 2016, 6:05 PM

Post #1 of 9 (803 views)
1993 civic won't start Sign In

Okay so I bought a 1993 honda civic Si 5 speed hatch about a month ago ran great at first love the car. Started having issues starting would occasionally crank but wouldn't catch, had to fiddle with it then it would. Then one day was pulling into work and it just shut off, not because I killed it. Now it won't start at all. Cranks doesn't catch at all. At one point we had spark. Up to this point we've replaced the dizzy lost spark, went back to the old one put in a new coil replaced ignition switch since it was a little toasty. Checked ECU no marks. Currently have no spark no fuel. Used a paper clip to jump the main relay and the fuel pump turns on. Definitely feel like I'm running out of options, would really like to have it running by winter.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Aug 27, 2016, 7:01 PM

Post #2 of 9 (800 views)
Re: 1993 civic won't start Sign In

Does the distributor rotor rotate when you crank the engine? Do you have a multimeter and know how to use it? Do you have a graphing meter or oscillioscope?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Ahasten96
Novice

Aug 27, 2016, 7:56 PM

Post #3 of 9 (791 views)
Re: 1993 civic won't start Sign In

Rotor rotates. Yes i do. We used a test light to check the plug to the distributor no power to the 8 prong plug for it even when cranking, only the black and yellow for I believe power to the ignitor. No to your last but I may be able to get one, what would I need it for?


Discretesignals
Ultimate Carjunky / Moderator
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Aug 28, 2016, 4:48 AM

Post #4 of 9 (779 views)
Re: 1993 civic won't start Sign In

The black yellow wire should have 12 volts on it with the ignition switch in the on or start positions. Also take your 12 volt test light and connect it to battery positive and then touch the distributor housing (metal). It should stay lit even when your cranking the engine.

The scope or graphing meter would be helpful if you need to check for signals going into and out of the engine computer.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Ahasten96
Novice

Aug 28, 2016, 9:58 AM

Post #5 of 9 (773 views)
Re: 1993 civic won't start Sign In

Okay this will at least give us something else to check. I'll let you know what we find


Ahasten96
Novice

Sep 13, 2016, 5:30 AM

Post #6 of 9 (745 views)
Re: 1993 civic won't start Sign In

Okay so we put in a new ECU, and we have fuel now, but still no spark. I have a source for a parts car and we've tried 3 different distributors so we're pretty sure it has nothing to do with it. Next step?


Discretesignals
Ultimate Carjunky / Moderator
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Sep 13, 2016, 1:09 PM

Post #7 of 9 (739 views)
Re: 1993 civic won't start Sign In

Did you check to make sure that you have power and ground to the distributor?

When you stated you have fuel, do you mean injector pulse or fuel pump activity?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Sep 13, 2016, 1:11 PM)


Ahasten96
Novice

Sep 13, 2016, 2:00 PM

Post #8 of 9 (735 views)
Re: 1993 civic won't start Sign In

The black/yellow wire for dist has power, and fuel pump activity haven't checked injector pulse but before we had no fuel pump activity


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Sep 14, 2016, 8:47 AM

Post #9 of 9 (721 views)
Re: 1993 civic won't start Sign In

Does this have injector pulse?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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