The P0029 fault code, applicable to all car manufacturers, means “Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 2)”.
The P0028 fault code, applicable to all car manufacturers, means “Intake Valve Control Solenoid Circuit Range/Performance (Bank 2)”.
The P0024 fault code, applicable to all car manufacturers, means “B Camshaft Position – Timing Over-Advanced or System Performance (Bank 2)”.
The P0025 fault code, applicable to all car manufacturers, means “B Camshaft Position – Timing Over-Retarded (Bank 2)”.
The P002A fault code, applicable to all car manufacturers, means “B Camshaft Profile Control Circuit/Open (Bank 1)”.
The P0023 fault code, applicable to all car manufacturers, means “B Camshaft Position – Actuator Circuit/Open (Bank 2)”.
The P0026 fault code, applicable to all car manufacturers, means “Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)”.
The P0027 fault code, applicable to all car manufacturers, means “Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1)”.