Hi guys,

So I installed a V2-SQ about 14 months ago. Got it tuned and it has been my daily driver (about 5 - 6k miles).

So over the last month or so, I have noticed that when I take my foot of the gas, the car is extremely jerky. In the past, I have only notice it when in the boost hard, then taking my foot of the gas, but it would really only jerk once.

Now it feels like it's my first day driving stick.

This AM I also noticed that my boost gauge is reading around 26 during idle, instead of the 22 - 23 it used to read.

Do I have a vacuum leak? Do I have a bad blow off valve?

Any input would be appreciated.

 

I would check the u-joints.

 

did you do anything else to the car,say like pulley swap, powerpipe,you could be getting air going backwards in the maf due to the blow off valve.

 

I had the same problem pop up in my auto. I played with the bypass valve I had a bit and it seemed to help the problem. just a thought.