s.a. last month I had to buy a 2011 308 1.6 vti automatic transmission petrol tubeless (tube removed)

. I didn't smile.
I bought the car because it costs 3 5 times. Extras are out. The problems continue. Let me explain the situation as follows.
They emptied the vehicle's catalyst. Exit catalyst was made into the manifold. At this time, the vehicle had a knocking problem, stopping when parking, stopping at a red light or stopping while parking. They said it goes like this. It didn't go. They said go to the electrician and have the throttle body checked. I went and replaced two of the camshaft sensors, he said the problem has nothing to do with the mechanical throttle. However, when the sensors were moved, the engine misfire ended. It just started giving the p0366 exhaust camshaft sensor signal unexpected error. Maybe because the sensor is defective, I changed the sensor, I loved it for 450 liras in vain, still the same. There is no other error. No misfires. It's good going. If anyone knows where the problem is, I'd appreciate it if you could help.