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Re: Tbi swap build thread
Quote:
Originally Posted by rfmaster
You can verify that FP is functioning couple of ways.
1) When you cycle ignition key from off to run ECM goes through a POST routine during which FP relay is energized for about 2-3 seconds (you shouls be able to hear it run) and subsequently turn off. If all other test check out SES goes from solid - blinks off and turns back on solid until engine starts (after cranking). During cranking FP should be energized.
It is rare, but 7747 ECM have been know to loose FP relay circuit driver transistor (2N2907 ) when FP relay is shorted to ground.
2)To verify if FP is functional you can force FP relay into a test operation via bypass, fuel system prime pig tail at the FP relay socket.
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Well the Fuel pump is running. I get gas up to the throtle body on the supply line but it just spits gas out the injector. I can pour gas in the tb and it will run untill it runs out of gas??? 
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The fleet
94 Chevy 4x4 reg cab
2018 Traverse (wifes car)
1977 SWB stepside
1949 Chevy truck
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