On the way to DGRR my FC began to miss a little, then the exhaust started to sound weird and it was losing power.  We tore out the plugs and did a poor mans compression test.  Both rotors sounded strong.  Checked coolant and oil, neither are intermixed.  Checked spark and its all good.  Even put new plugs in.
I was getting a CEL flicker when it started acting up.  And I get boost (although the needle is shaky).  A few people at DGRR said to look into fuel issues.  So before I go this weekend to attempt a resurrection, I would like some input.
S5 TII, no emissions, stock ECU with an FCD.  Full exhaust, FD pump.
Here is a vid: