P2444 Fault Code

Secondary Air Injection System Pump Stuck On Bank 1

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

The P2444 fault code indicates a problem with the Secondary Air Injection System Pump, specifically when it is stuck in the 'on' position for Bank 1 of the engine. This system helps reduce emissions during cold starts by injecting fresh air into the exhaust stream.

What are the symptoms of the P2444 code?

Symptoms associated with the P2444 code may include:

• Check Engine Light (CEL) illumination
• Increased emissions output, possibly failing emissions tests
• Unusual noises from the secondary air injection pump
• Possible rough idling or performance issues if the system malfunctions significantly

What causes the P2444 code?

Common causes of the P2444 code include:

• A malfunctioning secondary air injection pump that remains engaged
• Electrical issues, such as a short circuit or faulty wiring
• A stuck relay that fails to turn off the pump
• Vacuum leaks in the secondary air system
• Faulty control valves that do not open or close properly

How to fix P2444?

To resolve the P2444 fault code, consider the following steps:

• Inspect the secondary air injection pump and wiring for damage
• Check for vacuum leaks in the system and repair as needed
• Test and, if necessary, replace the secondary air injection control valve
• Check and replace any faulty relays that control the pump operation
• Clear the fault code, start the engine, and observe if the code returns after repairs