Hi all,

Astra Diesel 2000/x . 1,7DTI isuzu lump, 100k,

Got a problem, I have a fault code P1125

Turbo charger wastegate regulating valve- circuit malfuction... OR

Boost pressure solenoid insufficient flow...

Well , the car has trouble starting, and when going wont go over 15 mph !!!
Any clues...Any help much appreciated