P2446 Code - Secondary Air Injection System Pump Stuck On Bank 2
Quick Answer
To accelerate the activation of catalyst when warming up the engine, the air injection system pumps the secondary air to the exhaust manifold by pressure. Common causes include Air pump fuse, Vacuum hose, Air pump assembly. 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
- P2446 indicates Secondary Air Injection System Pump Stuck On Bank 2.
- Common causes
- Common causes include Air pump fuse, Vacuum hose, Air pump assembly.
- 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.
Code P2446 Description
The ECM observes the pressure in the secondary air passage using the pressure sensor located on the air switching valve in the secondary air injection system. The sensor detects an exhaust pressure in the secondary air passage.
What are the Possible Causes of the DTC P2446?
- Air pump fuse
- Vacuum hose
- Air pump assembly
- Faulty Pressure Sensor
- Air pump harness is open or shorted
- Air pump circuit poor electrical connection
- Pressure Sensor harness is open or shorted
- Pressure Sensor circuit poor electrical connection
How to Fix the DTC P2446?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2446 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P2446 code?
Need more information on how to fix the P2446 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2446 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P2446 Dodge — Secondary Air Injection System Pump Stuck On Bank 2
- P2446 Lexus — Secondary Air Injection System Pump Stuck On Bank 2
- P2446 Toyota — Secondary Air Injection System Pump Stuck On Bank 2
Frequently Asked Questions about P2446 Code
1. What are the common symptoms of OBDII code P2446?
- Common symptoms of code P2446 include the Check Engine Light being illuminated, reduced engine performance, and potential rough idling or stalling.
2. What does the OBDII code P2446 indicate?
- OBDII code P2446 indicates that the Secondary Air Injection System Pump on Bank 2 is stuck in the on position.
3. What are the possible causes of code P2446?
- Possible causes of code P2446 include a faulty Secondary Air Injection Pump, a stuck air control valve, damaged wiring or connectors, or a problem with the air injection system's control module.
4. How serious is OBDII code P2446?
- Code P2446 is considered a moderate to serious issue as it can affect the vehicle's emission control system and overall performance. It is recommended to address this code promptly.
5. Can I continue driving with OBDII code P2446?
- It is not advisable to continue driving with OBDII code P2446 present, as it can lead to further damage to the vehicle's emission system and potentially impact engine performance.
6. How can I diagnose OBDII code P2446?
- Diagnosing code P2446 typically involves using a scan tool to retrieve the code, inspecting the Secondary Air Injection System components, checking for damaged wiring, and testing the pump and control valve functionality.
7. How can I repair OBDII code P2446?
- Repairing code P2446 may involve replacing the faulty Secondary Air Injection Pump, repairing or replacing damaged wiring or connectors, cleaning or replacing the air control valve, or addressing any issues with the control module.
8. Is it possible to reset OBDII code P2446 without fixing the underlying issue?
- While it is possible to clear the code temporarily, it is crucial to address the underlying issue causing code P2446 to prevent it from reoccurring and potentially causing further damage to the vehicle.
9. Can a DIY enthusiast fix OBDII code P2446?
- Depending on the DIY enthusiast's skill level and access to tools, repairing OBDII code P2446 may be possible, especially for tasks like inspecting wiring or replacing components. However, some repairs may require professional assistance.
10. How can I prevent OBDII code P2446 from coming back?
- To prevent OBDII code P2446 from reoccurring, it is essential to perform regular maintenance on the Secondary Air Injection System, address any potential issues promptly, and follow the manufacturer's recommended service intervals.
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