Audi A3 1.6 MissFire

[Oliverodon]

Hello, I have a Audi A3 1.6 2010 petrol With 95000 miles. The car struggles to get over over 4000RPM. Along side this, in low revs I can put my foot to the floor and it doesn’t go anywhere, especially and most commonly in second gear. When I dip the clutch it picks up again. The engine light is on. When I scan it, it comes up with a Cylinder 4 miss fire.

I use to get a oxygen sensor and a catalyst converter code when I plugged the car in. But since I've used some cat cleaner it hasn't come up again. Along side this I’ve had the car for over a year and it’s always burnt oil. I’ve read that this model is Notorious for burning oil but doesn’t have a PCV valve.

I have put a new ignition coil in, all new spark plugs and leads, I’ve cleaned out the throttle body. I’ve put a new fuel filter in and I change the oil and oil filter regularly. When I listen to the injectors at idle they all fire consistently sound good to me. About 6 months ago I had a new gear box and clutch put in. It's still coming up with a miss fire.

The cars engine code is BSE. I’ve tried to be as detailed as possible. Any ideas? Thanks