lkjrslick

i have a 1995 gmc sierra k1500 5.0 tbi. checked for power and ground at the relay terminals- ok. jumped fuel pump test connector and fuel pump works. checked gray wire at fuel pump connector when turn key on- test light does not light.

Rednucleus

So with key on you do not hear fuel pump run?
My 93 did this, could add gas to throttle body and it would run; needed the ICM in the distributor