Quote:
Originally Posted by Crowz
There is a stronger version of the gm injector/head cleaner than what that guy was using in that video I linked. Unfortunately I don't have the part # for it. The stuff is very powerful and will flat out take the carbon off.
I will see if I can find the part # but I doubt you would have time to get it and use it in the time frame your going for.
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Late to the party, but for future reference... Audi direct injection engines are notorious for carbon buildup. I yank the intake on my A4 and de-carbon the ports/valves with BG "ISC" or Induction System Cleaner. It's unbelievably nasty and softens/dissolves the carbon.
https://www.bgprod.com/catalog/gasol...ystem-cleaner/