[ossiblue]

I agree with Tony and suggest you follow the procedures, above^^.

Your OP was a little confusing to me when you wrote, " I checked the pressure in front of the WUR and after the WUR, and it is the same with it backed all the way out..." It sounds like you have an adjustable WUR, is that correct? If so, what do you mean by having it "backed out all the way?" I suspect you adjusted the cold control arm upward (by backing out the adjustment screw and raising he control arm pin), thus raising cold control pressure to the maximum level--the warm pressure setting. To lower the cold control pressure, the pin (or adjustment screw/bolt) needs to be moved down into the WUR body.

If I have misunderstood your post, I'm sorry, but your problem would be a logical result of what I have described. If you follow Tony's advice, your settings will be in spec and your engine should run.