Any updates on this? I had the same problem. Same CEL, and turbo went out. Then my motor went after I put a new turbo on.
I then built a motor with a new crank, hbeam rods, wiseco pistons, worked over heads w/ manley +1 valves & dual valvesprings w/ Ti retainers.
I ordered up an 08 11mm oil pump, sanded the plunger with 600 grit in hopes to avoid any sticking action.
I got 700 miles on it, and I start hearing a slight rod knock. Drained oil, no coolant, but there are teeny tiney metal flakes, and it's aluminum. Turbo is fine surprisingly, not really any shaft play- Garrett B/B FTW. may need new seals though.
My thoughts are... if you're getting this code... like other people said, you're getting oil issues to the cams.