Dan_34

My 2013 Audi A3 is misfiring. Taken it to the mechanic but they don't seem to know what the issue is. initial diagnosis shows an issue with Cylinder 2. On ideal it is seems ok. when starting to accelerate, it runs rough and starts to backfire. This problem doesn't occur when vehicle is warm but happens when cold. Here are the current repairs that have been done but still no results Parts changed Intake manifold high pressure fuel injector Camshaft Adjuster Magnet Gasket Low pressure fuel injector spark plugs ignition coil throttle body ECU Has anyone experenced this issue , what steps did you take to fix them ?.