1993 Chevy S-10 Fuel Pump

Hi a few days ago my fuel gauge started wigging out then stopped working. Then the next day I thought I ran out of gas and pulled over because it stalled. I put some gas in and it wouldnt start up. I looked under the intake and there was no fuel squirting into the throttle body. I figured it was the fuel pump got it towed to my house and put a new one in and a new fuel filter. It makes no noise when I turn the key like it should and I put new relays in and still nothing. Also I found a blown ecmb fuse and replaced it but still no luck. I checked the wires for voltage going the the fuel pump and when I turn the key on it shows 8 volts for a second but then drops down to 4. I would really appreciate if you could help me out thanks.