Well just recently my motor has been making an odd noise. If I accelerate hard and hit full boost (~13 psi) my motor sounds like its blowing a raspberry at me and I stop accelerating. If I accelerate slowly I can rev right to redline with no issue. I thought right away it must be a spark issue so I replaced the sparkplugs (which looked really good still) with new ones. (replaced ngk 6097's with more 6097's) After doing this I took the car for a drive and still had the same problem. I talked to a few friends about it and a buddy of mine mentioned his old dakota doing the same thing and it was a sensor for him but he sold it and never fixed it so he doesn't know whcih sensor it was. Anyone have any ideas on if this is a sensor problem and if so what sensor. Any other ideas would be great also. Thanks