P2441 LEXUS Secondary Air Injection System Switching Valve Stuck Closed Bank 1
Possible causes – Faulty Vacuum Switching Valve (VSV)– Vacuum Switching Valve (VSV) harness is open or shorted– Vacuum Switching Valve (VSV) circuit poor electrical connection– Faulty Pressure Sensor– Faulty Air Switching Valve When is the code detected? If the Engine