Oh my God!!!!! Please dont say that!!!
Just on tick over mate!!!
Rang the garage this morning and they said basically they just unclip the old sensor and clip in the new one, so basically there is nothing that could have made any difference!!
I dont know, maybe its just me....just before i noticed how quiet is was (you could hardly hear the engine running) and now it just sounds louder!!!!!
Mind i have noticed a slight judder thats got worse on tick over like its not tickin over right....but again its only very slight!!!!!