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Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap?

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Old Jun 7, 2004 | 05:17 PM
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Default Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap?

I have a 98 Civic hb and I will be putting in a 99 b18c1. Can I use a 99-00 Civic Si engine wire harness? I read the swap info (sticky) up above....but all it said was there may be problems not sure what though. Does anybody know if I can do this without any problems?
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Old Jun 7, 2004 | 05:46 PM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (PYITR821)

ttt
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Old Jun 7, 2004 | 08:26 PM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (PYITR821)

anyone know?
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Old Jun 7, 2004 | 10:43 PM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (1993sir)

ok, lets say I just get a 96-98 civic ex harness and I want to run the ecu from the 99 gsr but I don't want to buy a jumper harness....what pins would I need to switch to make this work?
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Old Jun 8, 2004 | 05:15 AM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (PYITR821)

The 96-98s use the A, C, and D connectors (1st, 3rd, and 4th connectors). The B connector on 96-98 are used for automatic transmissions.

99+ use the A, B, C connectors.

You'll need that B connector and a Helms manual to know what wire hooks up to what.
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Old Jun 8, 2004 | 03:50 PM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (e-kay)

anybody have any links to a wire diagram.....I need somebody to tell me exactly what I need to do to make this work. Pics would be great!!
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Old Jun 11, 2004 | 08:46 PM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (PYITR821)

So what's the best thing to do? get a 96-98 ex wire harness or should I just modify my dx wire harness?
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Old Jul 11, 2005 | 02:15 AM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (PYITR821)

whats up man i am running the same set up... and i am going to ref soon. I origninally used my DX harness and added the necessary wires... it ran great with only one engine code that had nothing to do with the wiring. I am going to put in a 99-00 civic si harness and run a 99-00 si computer on my 98 gsr motor in my 96 hatch. It should fit pretty well... the only thing i hear you have to do is lengthen some wires. IF you get any info on this please let me know gl man
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Old Jul 11, 2005 | 08:29 AM
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Default Re: Can I use a 99-00 Civic Si engine wire harness for my 99 Gsr swap? (boiek9)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boiek9 &raquo;</TD></TR><TR><TD CLASS="quote">It should fit pretty well...</TD></TR></TABLE>

Famous last words from people who don't search/own a Helms manual...

Good luck using a 99-00 Si harness in a OBD2a chassis. And good luck on eliminating the fuel tank pressure sensor code when using a 99-00 Si ECU in a 96 hatch - your hatch shouldn't have come with a FTP sensor.

The easiest thing to do is re-use your existing harness and add the wires needed to complete the swap. If you try using a Y8 harness, which will work, you'll still have to add some wires.
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Old Jul 11, 2005 | 11:30 AM
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Default

yeah just use your stock harness and add the necessary wires by far your easiest option.
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