AutoCodes – Ford – P2448 2008 Ford Fusion

P2448 2008 Ford Fusion 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 AIR outlet hose leak, AIR outlet hose is disconnected. 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 2008 Ford Fusion indicates Secondary Air Injection System High Air Flow Bank 1.
Common causes: Common causes include AIR outlet hose leak, AIR outlet hose is disconnected.
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.

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Code Popularity 3,622

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2448 2008 Ford Fusion Description

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. The P2448 code is set when the AIR system detects excessive mass air flow change with the pump on and a rich exhaust system air fuel ratio.

OBDII Code P2448 2008 Ford Fusion - Secondary Air Injection System High Air Flow Bank 1 - AutoCodes.com — P2448 2008 Ford Fusion Code - Secondary Air Injection System High Air Flow Bank 1

What does this mean?

What are the Possible Causes of the DTC P2448 2008 Ford Fusion?

AIR outlet hose leak.
AIR outlet hose is disconnected.

How to Fix the DTC P2448 2008 Ford Fusion?

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 2008 Ford Fusion 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 2008 Ford Fusion code?

Need more information on how to fix the P2448 2008 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

Frequently Asked Questions about P2448 2008 Ford Fusion Code

1. What are common symptoms of OBDII code P2448 in a 2008 Ford Fusion?

- Common symptoms include the Check Engine Light being illuminated, rough engine idling, and decreased engine performance.

2. What does the OBDII code P2448 for a 2008 Ford Fusion indicate?

- This code indicates a problem with the Secondary Air Injection System High Air Flow on Bank 1 of the engine.

3. What are possible causes of OBDII code P2448 in a 2008 Ford Fusion?

- Possible causes include a faulty secondary air injection pump, a blocked or leaking air injection system, or wiring issues.

4. How can I diagnose the OBDII code P2448 in my 2008 Ford Fusion?

- Diagnosis typically involves checking the secondary air injection pump, inspecting the air injection system for leaks or blockages, and testing the electrical connections.

5. Can driving with OBDII code P2448 in a 2008 Ford Fusion cause further damage?

- Continuing to drive with this code may lead to increased emissions, decreased fuel efficiency, and potential damage to the catalytic converter.

6. How should I repair OBDII code P2448 in my 2008 Ford Fusion?

- Repair usually involves replacing the faulty secondary air injection pump, repairing any leaks or blockages in the air injection system, and addressing any wiring issues.

7. Is it safe to reset the Check Engine Light after fixing OBDII code P2448 in a 2008 Ford Fusion?

- It is recommended to reset the Check Engine Light after fixing the issue to see if the repair was successful and to monitor if the code reappears.

8. Are there any DIY tips for addressing OBDII code P2448 in a 2008 Ford Fusion?

- DIY tips may include checking and cleaning the air injection system components, ensuring proper electrical connections, and conducting a visual inspection for obvious issues.

9. Can extreme weather conditions affect the occurrence of OBDII code P2448 in a 2008 Ford Fusion?

- Extreme weather conditions can potentially exacerbate issues with the secondary air injection system, so it's important to keep the system well-maintained in all conditions.

10. How often should I check the secondary air injection system in my 2008 Ford Fusion to prevent OBDII code P2448?

- Regular inspections and maintenance of the secondary air injection system are recommended as part of routine vehicle upkeep to help prevent issues like OBDII code P2448.