Ls swap 91 civic dx no spark

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Old Aug 9, 2010 | 10:00 PM
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DriftStaRSi91's Avatar
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From: Maryville, tn, us
Default Ls swap 91 civic dx no spark

I have just swapped in a 1991 B18A in to a 91 civic dx it ran with the pm6 si distributor but it ran like it was out of time. The motor ran great in the car in which I pulled. I went and switched it with the Ls distributor now has no spark. Has anyone had this problem... Maybe there is something stupid I have over looked. I have also replace every thing inside the distributor.....Stumped......
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Old Aug 10, 2010 | 07:35 AM
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Default Re: Ls swap 91 civic dx no spark

Should the 7 wire dizzy plug have power going to it some where other that the round two prong plug(black and yellow and blue)?
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Old Aug 13, 2010 | 09:41 PM
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Default Re: Ls swap 91 civic dx no spark

So I now have solved my own problem. I suppose who ever had the distributor before I got a hold of it had the blue wire and the white wire reversed on the igniter. I switch the two wires and the car started.... It still thows a code 4. Now that it is running it is throw a code 19. After doing some research I have found it to be the Lock-up control solenoid... odd.... after more research I have found that someone has switch the ecu in the Integra with a 37820-pr4-A60 which would be a automatic ECU.....that would also explain why it idles up and down 200 rpms.....hmm... guess i will be on the hunt for a manual Ecu now.

in 88-91 ecus (PM6, PR4, PW0, PR3, PM7):
5spd = 000, 001, 002, A00, A01, A10, J00, J001, C01, C00
Auto = J51, J50, A50, A51, 900, 901, A60, C50, C51, X30, A80
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Old Aug 15, 2010 | 09:17 PM
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Default Re: Ls swap 91 civic dx no spark

Got the ecu put it in and it runs good.....One thing tho the passenger side axle pops really loud when backing up.........
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Old Aug 16, 2010 | 12:48 AM
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From: eastside
Default Re: Ls swap 91 civic dx no spark

did you take out the dust ring/cover on the inner side of the hub where the axle goes through it doesnt fit right with civic hubs causes binding and what not
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Old Aug 16, 2010 | 01:01 AM
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Default Re: Ls swap 91 civic dx no spark

Check the fuses
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