So I recently purchased a 2007 F250 with a powerstroke and had to fix a few issues before I could use it. The whole project has been really fun and I've learned a lot thanks to this page! Truck is running great except for the fact that the VGT does not seem to be working properly. I could constantly hear it engaging and disengaging while runnung and even idling. The turbo has less than 1000 miles on it and it was installed while the truck was tuned. The truck runs great sometimes and others it is super laggy on take off...Is the VGT bad or does it need programming?