So, I bought an audi a6 months ago. Timing belt was broke on it and it bent the valves. Payed a guy to fix it and it still runs horrible. I took it to audi and come to find he didn't do the timing right. They also told me that multiple cylinders were misfiring. So I got the timing fixed and I replaced all 8 plugs and 8 coils. misfire codes still show and it runs horrible. Car idles fine while in park but as soon as I put in drive rpms drop to about 500-800. When I drive it, it drives ok, but defiantly not full potential. Then, after driving for about 10 mins or so and it is warmed up. It won't shift right and it just jerks extremely hard. It also had incorrect gear ratio codes so I replaced the trans filter and put new fluid in. Codes went away but it still jerks bad. I've tried the bg-45 (whatever) gas cleaner To clean the injectors but still no luck. I am loosing my mind and a lot of money with this car. Someone please help

 

So what codes are present now?

 

I forget the actual code but it's the random multiple misfires

 

The gear ratio ones went away.