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Unsure about wire on MSD Window switch

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Old Dec 29, 2005 | 02:36 PM
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Default Unsure about wire on MSD Window switch
I dont know if the yellow 18ga wire that supplies the ground to my solinoids should be wired directly to the solinoids or if it should be wired to a relay. It just seems funny that you would supply the ground with the little wire from the MSD unit. I'd be affraid of burning it up. How did you guys run yours?
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Old Dec 29, 2005 | 10:14 PM
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Yellow should run through your Fuel Pressure Safety Switch (FPSS) then to ground.
Hawk
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Old Dec 29, 2005 | 10:59 PM
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or straight to a relay if you're not usin a FPSS
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Old Dec 30, 2005 | 07:32 AM
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Originally Posted by oange ss
or straight to a relay if you're not usin a FPSS
Originally Posted by 227Hawk
Yellow should run through your Fuel Pressure Safety Switch (FPSS) then to ground.
Hawk
Thanks for the replies!
So I run the yellow wire to the FPSS and then from the FPSS to a relay?
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Old Dec 30, 2005 | 09:18 AM
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That's right. Run the yellow wire from the switch to the FPSS, and run the ground wire from the relay to the other side of the FPSS.
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Old Dec 30, 2005 | 10:10 AM
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Ricky
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Old Dec 30, 2005 | 11:24 AM
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Originally Posted by NXRICKY

Ricky
Originally Posted by NXJeremy
That's right. Run the yellow wire from the switch to the FPSS, and run the ground wire from the relay to the other side of the FPSS.
Thank you guys so much! Also thanks for sharing you knowledge and not getting tired of me asking so many questions, sorry dont mean to be a bother.
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Old Dec 30, 2005 | 12:48 PM
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No bother at all, this is what this forum is for sharing information to help everyone have a safe and happy nitrous time. Let us know if it all works out for you..
Ricky
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Old Dec 30, 2005 | 01:20 PM
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Thank Ricky! Much better copy then I had before
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Old Dec 30, 2005 | 06:52 PM
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ok, i have a WOT/window switch do i wire it like that just without without a micro switch ? if thats the case what do i do with 86
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Old Dec 30, 2005 | 07:18 PM
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do you a WOT switch or not ?
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Old Dec 31, 2005 | 09:48 AM
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Originally Posted by oange ss
do you a WOT switch or not ?
yeah but it in the window switch control box ( fly by wire car ) once i tap into the fly by wire 'tps' it will be a wot switch/window based on the output volts
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Old Jan 3, 2006 | 12:07 AM
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Fly By wire cars you will need a tps activation switch. That switch will have a hot output,(once wot is met) that output wire will run to the 86 pin.
Ricky
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