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09-25-2012, 12:19 AM
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#1 |
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Registered User
Join Date: Sep 2012
Location: minnieapolis, minnesota
Posts: 3
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67 painless LS1 wiring woes
not sure if anyone else out there has done the LS1 swap using painless harness for the truck and incorperated the Painless LS1/4L60 harness.
got a few questions regarding merging the wiring for Brake switch, the Neutral/Safety/reverse switch and Alternator wiring. I got a 4 wire brake switch, think i've figured out this dilema but if anyone can reassure me about it that would be great. The Neutral safety switch/reverse switch is the one bothering me the most and the Alternator wiring. I have a 4 wire neutral safety/reverse switch and I'm using a corvette LS2 2 wire connector style alternator. anyone that can lend me some insight that will help is greatly appreciated. wiring is the last on my list of this swap and i wanna get it done. Thx in advance. |
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09-27-2012, 10:30 PM
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#2 |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: 67 painless LS1 wiring woes
More info needed...
Year model of truck. Year/make/model of engine. Painless engine harness number. Original body harness? Painless, Other? So your alternator is off a LS2? LS2 GTO/G8's have a Denso alternator.....Corvette/Trailblazer use Delphi. PCM number? |
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09-28-2012, 12:44 AM
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#3 | |
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Home Built '87
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
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Re: 67 painless LS1 wiring woes
Read my 87 build thread around the last 1/4 or so.
There are some pocs of how I did my brake switch in there and how I wired it. Quote:
__________________
Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 |
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10-25-2012, 11:27 PM
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#4 | |
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Registered User
Join Date: Sep 2012
Location: minnieapolis, minnesota
Posts: 3
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Re: 67 painless LS1 wiring woes
TTT
Quote:
i wired the alternator as follows, battery to starter: starter to lug on alternator. 2 wire connector, 1 wire jumped to alternator lug and other wire tied into 12v activation wire from painless truck harness. the way i have it wired the truck works perfect, charges at 14.2v while idling. everything seems fine and dandy, til the other day battery DEAD truck wont start. Question is did i wire this wrong and its causing battery drain or do i have something else going on. Do i have to wire the resistor into the wire like i've been reading about or no? PLEASE HELP!! Thank you in advance |
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10-29-2012, 09:42 PM
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#5 |
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Registered User
Join Date: Sep 2012
Location: minnieapolis, minnesota
Posts: 3
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Re: 67 painless LS1 wiring woes
TTT anyone out there lend a hand on this one.
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