Sounds like you may have the regulator plumbed backwards. The 3/8 line should be from the pump and the 5/16 returns to the tank. The end with only one fitting goes to the engine.
Sounds like you may have the regulator plumbed backwards. The 3/8 line should be from the pump and the 5/16 returns to the tank. The end with only one fitting goes to the engine.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Also. Can u elaborate on ur statement regarding the pump wired to the PCM?
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He might have it wired like me....When I turn the key on, The computer turns the fuel pump relay on..Originally Posted by farmtruc
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.
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