Home >> Volkswagen >> 2012 >> Beetle Turbo, 2.0L Eng VIN 8, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> 2.0L - Generic Scan Tool - Engine Code: CCTA (Hatchback) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Three Way Catalytic Converter, TWC Checking >> Test Requirements