Vehicle has come to me after its done the rounds, trade vehicle.
2 codes at the moment,
P0299 Engine underboost current
P2453 DPF sensor circuit.

Live data shows boost pressure not move at all on zero kpa.
Map sensor is new bosch unit, the data moves when smoke machine fitted and testing induction but no boost movement.

I can actuate the turbo waste gate on the scanner and it feels free by hand.

I can not seem to find the location of the boost sensor, I assume, possibly incorrectly that is uses various sensors to determine the boost. possible the dpf sensor and map, but could be way off the mark.

Any body know if it has a boost pressure sensor and if so where it is located, local Vauxhall dealer said near the O/S/F inner wing but nothing there I can see.

Thanks