Home >> Volvo >> 1998 >> C70 2D Convertible, Standard >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Boost Pressure Control, Crankcase Ventilation - Cleaning, Inspection And Adjustment (Convertible) >> Checking And Adjusting The Boost Pressure Control (BPC) Valve On The Turbocharger (TC) (B5254T; 1998-1999) >> Wastegate valve, adjusting