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Hey guys, I have a 2008 chevy tahoe 4.8l giving me a P023f code. I checked for power and grounds at the fuel pump flow module and power coming from ECM for fuel pump "relay" inside of the Module. All battery voltage. The 2 wires going to the fuel pump from the module though I'm getting no voltage on either side. It is a ground-switched fuel pump so I should be getting 12v on both sides right? and it should drop to 0v when primed and cranking?
