Hi, I have a 2002 2.5 AJT motor, covered 33k. Never used any excessive oil. Been smoking for last couple of years progressively getting worse. Stripped the motor down. Block and internals were as new. Fitted new rings and shells as a matter of course. The head was a different story. It's a wonder it was running. The inlet and exhaust ports were blocked and valves were gunked up with a soft carbon. Pretty certain it was fuel. I've overhauled head, again no wear on parts. New VAG injectors, turbo and egr fitted. All back together. Primed the fuel and started first turn of key. Exactly the same, smoking white/blue smoke. Any ideas would be appreciated.