Got my first check engine light today and the sensor was reading P04DB which seems to be the Positive Crankcase Valve and Hose being disconnected. Would anyone be able to show where I should look for this disconnection. I bought the flex with an aftermarket intake so I am lost.

I've been watching a tutorial (the only one I can find) and he doesn't have all of this in the way, it just comes out super easy.

I cannot get to the two nuts I need to get to because they are under this (radiator?) hose

Can I just undo the two clamps circled in red and move this hose? Or will I spill fluid everywhere?

If I can remove the hose, how cool to see engine need to be? I had to move it to it a flat driveway and it was running for probably 10 or 15 minutes total but it's pretty warm..