Smoke test - P0456 - How to

Is there a tutorial that shows a step-by-step how to perform a smoke test on a 2007 5.7L?
A YouTube video, or a thread on this forum that did not appear in my search?

I have a recurring CEL, and it's not the gas cap. Thank you.

P0456 code for an EVAP System – Small Leak

 

I've seen pics of someone using the brake booster hose as the smoke machine input and putting a latex glove over the throttle body to keep the smoke from escaping the air filter, but I'm having trouble finding it.

 

I have seen some videos including Scotty Kilmer, but I still don't know what the procedure is.

 

Pretty basic steps:
Remove hose from brake booster and attach hose to smoke machine
Remove air intake from throttle body and put a glove over the throttle body (prevents air from escaping and will inflate once smoke starts flowing)
Turn on smoke machine and watch for leaks (may take a few to get enough pressure to start leaking)

 

Thank you... I will give it a go maybe this Sunday when the rain stops.

 

Try this one

https://www.youtube.com/watch?v=BP2ffBSD2A0

 

Excellent! ... that was going to be my next question.

 

Sorry I took so long, I got side tracked at work. LOL, its been sitting in my reply box since 6:15am this morning...

 

It turns out that my locking gas cap was the culprit... it lasted a little more than 3 years and the rubber O ring still looks good, but it would not hold pressure.