Weird noise around passenger head....

It sounds like moarse code... I didnt hear it in my car... I was looking for a rip in a vacuum line and when i moved the inlet tube it made a weird noise i figured this noise could have to do with my check engine light... Anyone have any idea... Its weird... Easily heard... Hard to determine quite where... I have been moving the inlet tube and sound is still there.... I think it has to do with all my emmissions crap too!!!! ERRRRR!!!! HELP ME OUT!!!! Weird noise hard to describe... almost like a piece of paper stuck in a sweeper but not nearly as loud!!!

I unplugged EGR sensor and the DPFE sensor and another sensor which has two bigger lines connected to it and the plug is similiar to an o2 plug in its located behind the motor in the middle behing and when I unplugged these the motor did nothing different... Little weird...