Ford P0021 OBD-II Trouble Code Definition: P0021 Intake Valve Timing Control Performance Bank 2 P0021 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0021 “A” Camshaft Position – Timing Over-Advanced or System Performance (Bank 2) What does the code mean? OBD-ii Code P0021 definition: A code P0021 definition:the VVT (variable valve timing) or VCT (variable camshaft timing) […]