Quote Originally Posted by benwaballs
when i had my 04.5 GLI (revo & n75 race valve ) spike 21 hold 19
Mine exactly the same..
When FMIC went on spike to 22, hold 20...near redline slow drop off of pressure.

If you are droppin to 12, then rising again in the same gear...something sounds wrong to me. Sounds like a misfire, or some sort of timing/detonation issue.