Welcome to JA!
Lets start with fuel?
and dbl check all fluids.
i have worked on no starts where it has run out of fuel/ low on coolant/ or low on oil and no one can find why it wont start (reason to ask)
low coolant shut down relay
,low oil shut down relay
air in the fuel system
The tps is dirty on the throttle peddle.
Let me know if we still wont start.