Anybody have any ideas whats causing this?
 

No SES light, no smoke, just runs like crap above 1500 rpms. Shakes when i'm driving. Cleaned the fuel filter and bowl, changed the oil, still the same. :argh:

This was in setting 4, 3 is the same 1-2 not as bad but still there. Haven't ran 5-6 settings, they're 4500 rev limit and the idle on them down right sucks.

Fuel pressure is about 58PSI when this was shot.

Sorry the sound isn't that good.