Was a pain in my bollox so it was lad I didnt change my injectors but I did yous loads of different fuel types and injector cleaners and touch wood it has stopped for now
I wen I done it last night i think wen set to 0 it went to the middle mark and wen set to 16 it went to TDC mark I'll have to check agen tho and them plugs are only about two tree months old lad