P2441 Fault Code

Secondary Air Injection System Switching Valve Stuck Closed Bank 1

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2441 code indicates that the secondary air injection system's switching valve on Bank 1 is stuck closed. In modern vehicles, the secondary air injection system is crucial for reducing emissions by introducing fresh air into the exhaust system during cold start conditions. When the engine is started, this system helps to accelerate the catalytic converter's efficiency and reduce harmful emissions.

What are the symptoms of the P2441 code?

• Engine warning light (check engine light) illuminated
• Decreased engine performance, especially during cold starts
• Increased emissions output
• Potential failure during emissions testing due to non-compliance with regulations
• Unusual sounds from the engine area when starting the vehicle

What causes the P2441 code?

• Faulty secondary air injection system valve
• Damaged or disconnected vacuum hoses
• Electrical issues, including shorts or open circuits in the wiring
• Faulty air injection pump
• Control module errors or malfunctions
• Low battery voltage affecting the system's operation

How to fix P2441?

• Inspect and replace the secondary air injection system valve if defective
• Check and repair any damaged vacuum hoses
• Examine the electrical connections and wiring for damage or rust
• Test and replace the air injection pump if it's not functioning properly
• Clear any trouble codes with an OBD-II scanner and retest the system to ensure the issue is resolved