Since the snow a couple weeks ago my car has been in limp mode showing the code
P9237 = Turbo/super boost sensor A circuit low input

have since changed the air mass flow sensor as well as the air sensor on the inter cooler pipe as it has a darkside front mount but it still shows, any ideas?! Really stuck any help would be appreciated 

 

cheers 

Luke

I presume you've cleared the fault code and it comes straight back?

Tried clearing them but comes straight back, the only other thing to do with pressure with the turbo is the small hose that connects to the actuator, any other ideas apart from that?

You sure you don't have a leaky inlet manifold or any associated pipes?

check the MAP sensor wires they can break off or get corroded and cause a break in the circuit