1998 Chevy S-10 Engine died

Engine Mechanical problem
1998 Chevy S-10 Two Wheel Drive Manual

I have a '98 S-10 w/ the 2.2L SFI engine and manual transmission. While driving, the engine slowed gradually until it stopped, and did not respond to me pushing the accelerator. Which seemed to me that it wasn't getting fuel, and I didn't hear the fuel pump when I tried to restart the engine. I checked all the fuses under the hood and under the dash, and all were ok. I also tested the relays for the fuel pump and ecm, which were also ok. So I changed the fuel pump thinking that would fix the problem. It didn't. So looking at other's problems, I drew the conclusion that the ecm was the problem. Ok, so I replaced the ecm and it was programmed for my vin #. Went through the 10 minute learning process (the security light didn't stay on after the key switch was turned on like the instructions said). This still didn't fix the problem. The fuel pump still can't be heard and there is no fuel to the fuel rail. So the engine still won't start. Also bought a code scanner and the scanner doesn't come on when connected to the port. I turned it on manually and when I try to read the codes, it tells me that the "tool must be connected to the vehicle to perform the test." Again checked the fuses and relays and all are ok. HELP!