I've had issues since I bought it a few weeks ago. Code P0237 and limp mode. replaced MAP sensor with a genuine Bosch. EGR is blanked at the bottom (at the egr pipe) Not mapped out, but no EGR error codes. At times is won't move as fast as normal when accelerating even though the boost gauge shows nearly max. this usually goes away when I let off the pedal for a bit then press it again and it pulls very strong again.add vnt % and repeat at your own risk, that's dangerously high boost for the turbo if accurate.
got swirl flaps ? may be broke in shut position .
vnt seized in max spool position
inlet manifold coked up to point of restriction
map sensor caput(does it read near atmospheric at key on or idle)
also add total fuel mm3 to log also
history behind this issue ? just mapped or just started overboosting