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Old 08-18-2002, 03:57 PM
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Default Wiring Harness

I am putting a 99 LS1/T56 into a Classic Roadsters Sebring MX. I need to rework the harness to fit my application. I would like to do the work myself but I'm having a problem finding enough documentation on the harness and computer to do the job. I know the pinouts from the computer but thats about it. Can anybody from this board help me find the doc's I need to do the job?
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Old 08-19-2002, 01:19 PM
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Default Re: Wiring Harness

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> I know the pinouts from the computer but thats about it. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What more do you need? You should be able to wire everything up with this data.
Old 08-19-2002, 05:31 PM
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Default Re: Wiring Harness

Well I'm just not sure about stuff like wiring in a fuel pump relay, Should I just use the hot from the computer to ground our should I use the computer ground? Same for the cooling fans, and the ODBII connector pinout (my harness is missing some connectors) etc... so I was just wondering if there is a comprehensive wiring diagram in one of the shop manuals.
Old 08-20-2002, 12:13 AM
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Default Re: Wiring Harness

I used the GM Service manual (the three volume set). Was able to figure everything out from that.
Old 08-20-2002, 05:58 PM
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Default Re: Wiring Harness

Thanks Jeff, I went last night to the Helm website and saw it on there for 150.00. At least I assume that's it. I try a local dealer first.
Old 08-20-2002, 07:36 PM
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I got mine from ebay for about $75.
Old 08-21-2002, 06:43 PM
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Default Re: Wiring Harness

Good advice. I just got a 99 3 book fbody service manual for 60.00 + 15.00 (ripoff) shipping from ebay.
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Old 08-17-2010, 11:51 AM
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I need a wiring harness diagram for a 96 LT1.
Old 08-17-2010, 12:47 PM
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Here is where you can find the schematics you might need for the LS1.

https://ls1tech.com/forums/conversio...chematics.html
Old 08-17-2010, 02:21 PM
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http://www.lt1swap.com/all_lt1.htm



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