guys what the hell are those 2 extra wires for?!
I get the ground and the 12v (+) but why the hell are those 2 other ones required? Does our ECU need to know it gets fired & confirmed too?
It's the IGT/ION wires that run as the middle two wires on our COPs....I don't get it, everyone and their mom uses just 2 wire COPs, why so special with 4?
