I am planning to use CRC gdi intake valve cleaner. I did search on this site as well on google but could not find specific instructions, specifically the video, however, I did find these two videos and in both the videos, it looks like they have the same engine as mine but still not sure which way to go.

1st video

2nd video


In the first video, the person is spraying inside the hose and in the second video, a person is spraying inside the PVC??? Tube , which one is the proper method of using CRC cleaner, or is there any other proper way to go about this?


My Kia's engine Bay