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Old 02-23-2015, 11:20 AM   #17
ls1nova71
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Join Date: Dec 2009
Location: Independence Mo
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Re: Transmission temperature Gauge

NO, don't just tap into it, that would just ground the low reference circuit to the PCM. Take the M wire out and run a dedicated single wire between there and pin 41. The pins in the trans connector and the PCM are the same, so if you have two extra ones, they will work in either connector.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
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