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Engine-Codes – Generic – P2444

P2444 Code - Secondary Air Injection System Pump Stuck On Bank 1

Quick Answer

The P2444 diagnostic trouble code indicates that the secondary air injection system pump on Bank 1 is stuck in the on position. Common causes include Faulty Air Pump: The secondary air injection system pump may be malfunctioning due to wear and tear or electrical issues, Vacuum Leaks: Any leaks in the vacuum lines connected to the air injection system can cause the pump to stay on, Wiring Issues: Damaged or corroded wiring connections can prevent the pump from receiving the proper signals to turn off. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2444 indicates Secondary Air Injection System Pump Stuck On Bank 1.
Common causes
Common causes include Faulty Air Pump: The secondary air injection system pump may be malfunctioning due to wear and tear or electrical issues, Vacuum Leaks: Any leaks in the vacuum lines connected to the air injection system can cause the pump to stay on, Wiring Issues: Damaged or corroded wiring connections can prevent the pump from receiving the proper signals to turn off.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P2444 Description

The P2444 diagnostic trouble code indicates that the secondary air injection system pump on Bank 1 is stuck in the on position. This system is responsible for injecting fresh air into the exhaust system to help reduce emissions. When the pump is stuck on, it can lead to an imbalance in the air-fuel mixture, which can result in decreased engine performance, reduced fuel efficiency, and increased emissions. If not addressed, this issue can potentially lead to damage to the catalytic converter and other emissions control components.

OBDII Code P2444 - Secondary Air Injection System Pump Stuck On Bank 1
P2444 Code - Secondary Air Injection System Pump Stuck On Bank 1

Common Causes of P2444

  1. Faulty Air Pump: The secondary air injection system pump may be malfunctioning due to wear and tear or electrical issues.
  2. Vacuum Leaks: Any leaks in the vacuum lines connected to the air injection system can cause the pump to stay on.
  3. Wiring Issues: Damaged or corroded wiring connections can prevent the pump from receiving the proper signals to turn off.
  4. Faulty Check Valve: A defective check valve in the air injection system can cause the pump to remain stuck on.
  5. ECM Malfunction: A malfunction in the engine control module (ECM) can also lead to the pump being stuck in the on position.

Symptoms of P2444

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the Check Engine Light on the dashboard.
  2. Rough Idle: The engine may experience a rough idle or even stall at times due to the improper air-fuel mixture.
  3. Decreased Performance: The vehicle may exhibit reduced acceleration and overall performance.
  4. Increased Emissions: Due to the malfunctioning air injection system, the vehicle may produce higher emissions than usual.
  5. Unusual Engine Sounds: The engine may produce unusual noises, such as knocking or rattling, as a result of the improper air-fuel mixture.

How to Fix P2444

  1. Diagnostic Scan: Use an OBD-II scanner to retrieve the specific trouble code and identify the issue with the secondary air injection system pump on Bank 1.
  2. Visual Inspection: Inspect the air pump, vacuum lines, wiring connections, and check valve for any signs of damage or leaks.
  3. Replace Faulty Components: Replace any faulty components identified during the inspection, such as the air pump, vacuum lines, check valve, or wiring.
  4. Clear Codes: After completing the repair, clear the diagnostic trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
  5. Recheck: Perform a final check to verify that the secondary air injection system pump is no longer stuck on and that the Check Engine Light has been extinguished.

Cost to Fix P2444

The cost of repairing a secondary air injection system pump stuck on Bank 1 can range from $200 to $800, depending on the specific cause of the issue and the cost of parts and labor in your area. It's recommended to consult with a trusted mechanic or repair shop to get an accurate estimate for your vehicle.

When is the Code Detected?

If the pressure level from the sensor has not reached a certain level despite the ECM turning on the air pump,or if the pressure level exceeds the threshold despite the ECM turning off the air pump, the ECM interprets this as a fault in the secondary air injection system and the code is set.

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Code P2444 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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