Cranks but wont start

[Plc17]

2004 Explorer 4.0
Pulled motor to replace timing chain guides.. no issue and reinstalled. Ran and drove but with vacuum leak for a out a week.. then wouldn't start.. today I took intake manifold off and it fired right up and could keep running with pedal... put everything back together... no start
I'm lost?? Maybe clogged cat?

 

[Number4]

Sounds like an issue with the throttle body.

 

[Plc17]

Sounds like an issue with the throttle body.

It's possible.. The throttle body was replace about 4mos ago though. Wouldn't be the first time I've had new parts fail either tho

Other new parts to eliminate... Crank sensor, plugs, wires, coil pack, MAF... All have been replaced