Toyota Land Cruiser P2442 code for air injection valve causing check engine light and limp mode issue on Toyota Land Cruiser

Some Toyota owners report experiencing issues related to the P2442 trouble code, which indicates that the Secondary Air Injection System Switching Valve in Bank 2 is stuck open. This malfunction can disrupt the air injection system, which is designed to inject fresh air into the exhaust to reduce emissions during engine warm-up. Owners have noted that the check engine light may illuminate due to this code, potentially causing the vehicle to enter limp mode, resulting in reduced power and performance until the issue is resolved. Possible causes for this problem include a faulty Vacuum Switching Valve, poor electrical connections, or issues with the Pressure Sensor or Air Switching Valve. Prompt attention to the P2442 code is crucial to maintain the air injection system's functionality and to prevent further complications with vehicle performance and emissions control.