P2448 Code - Secondary Air Injection System High Air Flow Bank 1
Quick Answer
For 20 seconds following a vehicle cold start, the air injection system delivers a controlled amount of outside air into the exhaust system, upstream of the catalytic converter, in order to help reduce hydrocarbon and carbon monoxide gas emissions. Common causes include Leak in the Secondary Air System, Air Flow Sensor, Air Flow Sensor harness is open or shorted. 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
- P2448 indicates Secondary Air Injection System High Air Flow Bank 1.
- Common causes
- Common causes include Leak in the Secondary Air System, Air Flow Sensor, Air Flow Sensor harness is open or shorted.
- 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 P2448 Description
What are the Possible Causes of the DTC P2448?
- Leak in the Secondary Air System
- Air Flow Sensor
- Air Flow Sensor harness is open or shorted
- Air Flow Sensor circuit poor electrical connection
How to Fix the DTC P2448?
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 P2448 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 P2448 code?
Need more information on how to fix the P2448 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2448 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P2448 Chrysler — Secondary Air Injection System High Air Flow Bank 1
- P2448 Dodge — Secondary Air Injection System High Air Flow Bank 1
- P2448 Ford — Secondary Air Injection System High Air Flow Bank 1
- P2448 Lincoln — Secondary Air Injection System High Air Flow Bank 1
- P2448 Mercury — Secondary Air Injection System High Air Flow Bank 1
Frequently Asked Questions about P2448 Code
What does the OBDII code P2448 mean?
P2448 indicates that the Secondary Air Injection System is detecting excessively high airflow in Bank 1, which could be caused by a malfunction within the system.
What are common symptoms of code P2448?
Symptoms may include an illuminated Check Engine Light, reduced engine performance, failed emissions tests, and possibly rough engine starts.
What causes the P2448 code?
Common causes include a faulty secondary air injection pump, a stuck open air injection valve, clogged air passages, or issues with the wiring or connectors related to the system.
Can I drive my car with the P2448 code?
While you may be able to drive the car, prolonged operation with this code may lead to increased emissions or damage to the air injection system. It’s best to address the issue promptly.
How is the P2448 code diagnosed?
A mechanic will typically use a scan tool to confirm the code, check system pressures, inspect the air injection pump and valves, and look for wiring or connector issues.
What repairs can fix the P2448 code?
Repairs may involve replacing the secondary air injection pump, cleaning or replacing the air injection valves, repairing wiring or connectors, or clearing any blockages in the system.
Will clearing the code with a scan tool fix the issue?
Clearing the code may temporarily turn off the Check Engine Light, but the underlying problem must be fixed to prevent the code from returning.
How much does it cost to repair code P2448?
Repair costs can vary depending on the specific issue, ranging from $150 for simple fixes to over $600 for a new secondary air injection pump.
Can a dirty air filter cause P2448?
A dirty air filter is unlikely to cause this code directly, but restricted airflow could exacerbate issues within the Secondary Air Injection System.
How can I prevent code P2448 from occurring?
Regular maintenance, including checking the air injection system and ensuring clean air filters, can help prevent this code. If your car has known issues with the system, periodic inspections are recommended.
Discuss the causes and fixes for P2448 OBDII Code
-
2013 dodge avenger first check engine light came on today drives fine I cleared the code p2448 waiting to see if it comes back
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
