New member with starting issues

Hi, just wondering if anyone has had a starting issue with their 2003 Toyota Tundra V6. I'm currently stump plus my Toyota mechanic. The truck was idling and stumbled/ died " the battery did die" Charged the battery, engine would crank over try to start and then just crank. I've checked the timing belt, fuel pump/ pressure, no codes, changed the plugs,ohmed out the crank and cam sensors. MAP sensor was clean, you can also smell the engine trying to start threw the throttle body. It's like something is telling the engine not to start. Thank you for all your help. Keep the Toyota alive

 

To this day I can't figure out why it would have done this or why it would've have effected anything like that, but my '03 v6 wouldn't start because the large yellow fuse in the fuse box in the engine bay was failing. I forget what it was for, but it was the one directly above the cable entry at the bottom of the fuse box. Swapped that out and it was good to go.