Quote:
Originally Posted by TA_C10
Ok homie.... How did you wire your 3 relay fans with A/C? Are you using a trinary switch? I went through all the old threads and I don't see where anyone really answered this question with certainty when it pertained the following details:
LS Swap - ECM controlling fans
Vintage Air A/C
3 relay setup
LS1Nova71 was the closest I found to explaining this setup but looked like it was never verified....?? http://67-72chevytrucks.com/vboard/s...d.php?t=781007
Thanks man. |
Quote:
Originally Posted by 1971Stepside
Call VA. They told me that I needed the trinary switch.
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So for now, I am wired without any A/C considerations because it's going to be awhile before I have my Vintage Air system.
Here's a link to a thread where I found all the info for both scenarios:
https://www.67-72chevytrucks.com/vbo...d.php?t=617142
Post #9 (also by ls1nova71) shows the GM schematic for the 3-relay/2 fan setup without A/C. Further into the thread, post #49 from dayj1 has a bunch of schematics on how to keep the PCM and Vintage Air happy. It looks like the links to the pictures are broken, but one of the last 2 diagrams on that post are what I plan on using. I'll reach out to dayj1 about the broken links.