Hello I have a 2016 Ford Focus DCT. Cars been acting very strange. Just happened about a week ago. The car was custom tuned before. Noticed a bad smell coming from the exhaust and a rattle sound during start up and a significant loss of performance and the ford dealer fixed the clutch then told me my aftermarket resonator was the issue. So then I went back after repairing it the engine light came on and pointed to a P0420 code so I ended up spending quite a bit of money to get the cat fixed as fixing the resonator did not solve the problem. After getting the cat replaced thinking that was the issue I noticed the car still operated same as before but now is not letting get out of second gear unless I take my foot off the gas. P2227 is the only code my X4 is showing has anybody had as many issues before? What can this most likely be and how can it be fixed. The car accelerated poorly and almost makes a grind noise when really trying to get it to shift up. Thanks.