You need to talk to Eric ASAP , on this you have no wide band correction working, even though its set to work on 10.8 AF. I suspect your TPS is just a bit shy to tell the computer your at wot and its staying in open loop. But check with Eric to be sure. You may have to turn on part throttle wideband control (cell 15 to value 110) and see if the correction works. Back the boost off for now, before you hurt something.