Quote:
Originally Posted by davepl
Just don't use the LMC "relay upgrade" harness, it's miswired (at least for the GMC) and you have to fix it before you can use it. I mean go ahead and use it if you can find the threads about it so you know what's wrong with it, but until they get a new batch (unless they already have) that's wired right, they're a pain.
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Here's a good diagram for the GM Headlight relay wiring.
Quote:
Originally Posted by aod92
Ok now you have me curious. How does the starter relay work? I did an ls swap and I have the purple ignition wire to the small post on the starter and a heavier gauge wire to the bigger post straight from the battery.
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Here is a relay that controls the starter solenoid. If you have good clean connections and a good battery and starter you should not need it. JMHO
86 is the purple wire and 30 can be connected at the starter solenoid on the large cable.
I love to get a chance to show this.
http://67-72chevytrucks.com/vboard/s...d.php?t=655903