INA(now IAbed)made a cam follower conversion kit, not sure if still available: http://iabedindustries.com
Add port injection to resolve carbon buildup... Other than those 2 issues that can be corrected, the FSI was a bulletproof motor.
http://www.selfmadesolutions.com/2.0t-fsi-to-2.0-tsi-cam-follower-conversion.html
The permanent solution to this problem is the 2.0T FSI to 2.0 TSI fuel pump follower conversion kit from iABED Industries. This kit utilizes the roller bearing style cam follower found on VAG 2.0 TSI (EA888) engines and retrofits it to work with the OEM 2.0T FSI (EA113) intake cam lobe. To achieve this the camshaft adjuster housing is CNC machined at the fuel pump opening in order to fit the CNC'ed T6061 billet cam follower adapter.
Sounds like a lot of work, and certainly not worth it on a 120K car.