2018 Tundra 5.7L intermittent no start/extended crank

Ok took mine back to toyota last week and they reset the ratios and reflashed the computer and it hasnt missed a beat since so I'm good for now.

 

I'm new here and thank you for the forum. I have the same problem. The dealership told me it was the fuel pump. I bought a new one, had my mechanic put it in. Guess what, does the same thing! Another person told me it was the coolant pressure valve on the metal hose connection at the rubber hose. He tried cranking it over and it would not start. He then got under the hood and disconnected it. It started! I went out and got one,two weeks later, same problem. I will try the pcv valve next. Jeff

 

let me tell you, it's the % values of alcohal they need to go in and reset values and then flash the computer to get it to stay reset, i took it in and they said they had done it but whoever did it didnt know what he was doing. after reading alot out there i weent back in a week later and had their top tech do it, and bingo it hasnt missed a beat since.