What should my fuel pressure be with car running at the rail?
Just replaced my pump and filter.
starts right up and idles smoothly, but when I drive it is very sluggish almost undriveable.
only code I get is for the o2 sensor. I dont think this could be the cause?

The test valve at the rear of the right valve cover should measure 41 psi plus or minus a few.

Changed the filter? Sorry, missed the filter change.