Good morning, I was looking for some advice please. A couple of weeks ago I had the injector seals replaced on my 2007 Audi A3 sport back 2.0 tdi. All was well with the car when I picked it up from the garage but the next day at work the car was struggling to start. I took the car back to the garage and the mechanic plugged it in and got the fault codes P1269 and P1270 which relates to cylinder 4 I believe. I’ve had a quick look online and seen it could be the injector harness. Can anyone shed any further light on this for me please? It would be greatly appreciated as the car was given to me by my brother who passed away last year.