Its looking like the number 2 cylinder injector on my 2008 vrs octy has got noisy. I could put this the mk2 octy forum but thought it would be best here to get a wider audience. The noise sounds like two hammers hitting together or at least a very metallic clicking. I have two questions, 1st where is the best place to buy a new. I can't get from TPS up here. 2nd, do they need to be coded to the car when replaced.

it may be able to be renozzled   I would use a diesel specialist rather than the stealers