Only making 15psi of boost
Hey all, this is my first post on the forum. So about a week ago I installed a C&L bypass valve adapter on my mustang. Since then the car has been making a loud “whoosh” noise under throttle, even at the slightest press of the throttle. It still purges when letting off of the gas, but it should not be doing it under throttle. The second issue is the car is only making 15lbs of boost, I think this is seperate from the adapter because I’ve since removed the adapter and the car continues to be down on boost. Car is a 2015 mustang ecoboost manual transmission for reference.