Quote:
Originally Posted by gmachinz
Well I might be able to help-Ive started building stripped down LS harnesses so while I design my harnesses a little different from everybody else, basically you have what I call a 4-wire connection.
Relay 1 is your fuel pump relay control-it is +12V IGN on via the RED pcm connector harness pin 9.
Relay 2 is your PCM switched +12V IGN on. Im a bit confused on the relay 2 wiring through the fuse panel-not sure why there doesnt appear to be a ground trigger for it-? As I said, I build my harnesses a little bit different because there are a few things most of the "online guys" do which Im not a fan of but hopefully somebody else can chime in regarding yours.
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That's where I'm confused, I don't know really understand what's going on with relay number 2. Is it possible to trigger the relay without a ground?