I have a 98 z71 that will not crank. It went dead pulling in the drieway. I replaced the fuel pump. I have over 60 psi at the top of the engine. It will run as long as I pour gas into the throttle body. What can I try next? I also replaced the regulator

 

you said it runs with fuel in the throttle body? hmm. i was gonna suggest spark, if there was no spark, thencheck Crank Position Sensor on front of engine by harmonic damper.i could be way off base, dont know.

 

If it's the crank sensor, would it crank with gas in the throttlebody? It runs great as long as you keep pouring in the gas

 

well are you sure the fuel pump is good? if you arent getting fuel past your filter to the tbi then youre pump is bad. but you said you have 60psi at the engine. so if it is getting fuel, then maybe starter, or one of your spark plugs may be bad....

 

The truck runs great when you keep pouring gas in it.