Number 2 has cracked a ringland and is out of round by around 2mm, 1 and 3 are out of round by around 1.2mm i believe. Pistons 2 and 4 are the worst out of the lot. Which now leads me to believe something could have gone adrift with the wiring to the emanage blue. Due to 1 and 3 not having as much damage as 2 and 4 it could possibly be a incorrect signal from the emanage altering the duration of the injectors. A bad soldered joint or something could have caused the resistance in the wiring to change. Just a shame that it happened to be an injector signal wire. More investigation is being carried out in due course.