I have a PO 174 B ( bank 2 system too lean) CHECK ENGINE CODE. How much to fix. on 2006 BMW X3

I want to know how much will cost to repair.

Asked by for the 2006 BMW X3
you have to have it diagnosed it could be a vacuum leak bad injector fuel pressure regulator so you have to have it checked at a german garage
Just bought X3, can this be expensive to fix?
1 more answer
Get the transfer case fluids replaced right away. Very expensive to repair.

When i bought mine, i replaced the spark plugs, oil and all filters.