I installed a Kerma PD140, stage 3 colt cam, malone stage 4 tune. Everything has been great. But about 2 months ago have a P0299 show up. And have been trying to figure out since. The turbo and other mods only have about 20k on them. But I have a slight premonition that something with the vanes in the turbo charger have gone bad. I have tested everything under the sun. Concerning vacuum and vacuum lines. Also boost system. I have found nothing notable except a lack of boost. I find it hard to believe that only 20k a problem with a brand new turbo could be an issue. But stranger things have happen. Any feed back would be greatly appreciated.