Engine will crank but will not start up?

No scan codes, getting spark, getting fuel, has good comp. Checked all fuses and relays. Ben driveing good parked it the next day will not start ben trying everything for about two weeks now and nothing. It's a malibu LS model.V-6. Real nice car but ready to pull hair out

I didn't put a gauage on the fuel rail to know exzack but from pushing on the valve stem on the rail it seems to have good presure to me.
I tryed to heat-up a copuple plugs in my stove oven and spraying starting fluid in the cyl. And put the plugs back in hot to aid the fireing but nothing.
Yes it is a good spark, I even checked a couple
plugs, not just one.
Yes eveverything was normal when I shut it off the night before. It was driven all that day with no problem.
Just a little footnot, I do and have ben working on cars now for quite a while so I do know quite a bit already. It's just this one got me stumped.

Yes the motor sounds normal when it is turned over, it sounds like it just keep cranking with nothing, like it dosen't even try. The only thing that is different which seen odd to me is that if I releave the the fuel presure at the fuel rail by the ues of the valve stem and try it for the first couple of turns it stumbles a little like it's trying then it just keep cranking with nothing no attemp or anything, at other times I releave presure and nothing will happen at all I know it's still getting spark, and there plunty of gas in the tank.

No fuel pump fuse, pulled relay and tried it. Im falling back on timing chain skipped