Ok so the s/c is working fine, that isn't the issue. A friend of mine installed my boost gauge for me, we tapped into the vac line that runs from the throttle body to the BPV. Now ever since this, ive been hearing a tapping noise that seems to be coming form the BPV area and only occurs at idle. It happens randomly and frequently.

One other s/c owner with the gauge T'd into that same vac line has experienced the same "tapping" noise but it has gone away. I was just wondering if anyone else has this happening to them. The noise can also be described as a helicopter noise lol.

And one other thing, do any other s/c owners notice that the car shakes when you start it up cold? Not violently but a noticable shake. Thanks.

 

^my car shakes when i start it up too, but i dont have the s/c

 

the tapping noise might be a loose 02 sensor...and the shaking is a usual occurance in cold weather and it's ok as long as it's not a violent shaking