The P0029 fault code, applicable to all car manufacturers, means “Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 2)“.
Background Information: The camshaft controls the opening and closing of the valves. In a variable valve timing system, the electronic camshaft adjusting valve (or oil control valve, OCV) adjusts the camshaft angle by changing the oil pressure to the camshaft adjuster (mechanical type) according to instructions from the engine control module (ECM), ensuring the valves open and close at optimal times. This fault code appears if the actual position of the B (exhaust) camshaft differs from the ideal position by more than 20 degrees.
Tip: To quickly find fault codes, you can use a professional OBD diagnostic tool. This will help you accurately locate the problem. This data can help you understand the performance of various vehicle components and troubleshoot before the problem worsens.