ok so im at a loss with my blazer...
when i start it up it runs for a sec and then dies if i dont gas it...
the fuel guage jumps up and down so idk if the pump is goin out
but the oil pressure is only at 20 so idk if THATS goin out
but i heard bad plugs, wires, or a bad coil pack would look the same as what im experiencing...
anyone else ever have this issue?
im almost ready to give up on it

 

What are the fuel system pressures you are experiencing? Key-on/engine-off/pump-running? After the pump shuts down, does the pressure remain above 50psi for 10 minutes?

Oil pressure above 8psi for idle conditions is perfectly normal.