What's this noise?
 

Ever since 3000 miles I've been hearing this strange noise when I'm idling. Thought it was time for an oil change but the noise has still been here.

I remember reading a thread about this earlier but can't find it anymore and don't remember if there was a verdict.

You can hear it the best in the beginning of the video. It's that weir wobbly pulsating sound

[ame="http://www.youtube.com/watch?v=Xb_k-VyPoSA"]Brz sound - YouTube[/ame]

I'm not sure this link will work. I'm on my phone

Ever since I had my HPFP changed I've had the same noise.

maybe something is touching in engine bay to the sound tube

I haven't gotten the HPFP changed I'm living with the little crickets I have. And it doesn't seem like anything is getting in the way but who knows.

It usually comes and goes also. I was driving around earlier today and heard it. Later on when I started driving again everything sounded perfect. Engine is temperamental