red heart beat is right. i had it plumbed backwards but i have the pump grounded on the frame and have my 12v source from the ecm. the green with white stripe wire.
wow, looking to burn your pcm up? That lead is designed to carry enough amperage to trigger a relay, maybe 1/2 amp.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
yeah i have a relay wired in