97 silverado replace fuel pump fuse & relay no start

Pump was very loud , then would not start, I replaced filter fist, still no start, since pump was loudest I ever heard I replaced it, no start, no hear wine either, so replaced fuel relay, still no start, fuse looked good, but replaced it anyway still no start, So I sprayed starting fluid down air intake behind air filter, and it started for a brief few moments, so its not getting fuel, was fiddeling with the wires that were attached to the air intake hose between the filter and the intake of injector, and it started, then would not start anymore, tried fiddeling with same wires but no more start? HELP Anyone have some suggestions to make.

Can I by pass the mass air flow sensor or do I have to replace it to see if thats the problem?

Did you use the prime conector (a little red 18 gauge wire tucked in the side of underhood relay/fuse box ). You jump start the prime conector (red w/ female terminal end). as long as u hold power on that connector
the pump will run, Also bleed off air as it runs.









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Yes I did, and gave up on it, a knowaleable shop found that they ignition switch was bad 94-97 routed everything thru key switch, was an expencvie one $200 installed, would have cost me $160 part only at auto zone, Thanks Bruce