AutoCodes – Ford – P2448 Ford

P2448 Ford 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 Ford 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 9,425

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

What does this mean?

What are the Possible Causes of the DTC P2448 Ford?

AIR outlet hose leak.
AIR outlet hose is disconnected.

How to Fix the DTC P2448 Ford?

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 Ford 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 Ford code?

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

Need Help with the Code?

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Information for Specific Ford Models

P2448 2006 Ford Fusion — Secondary Air Injection System High Air Flow Bank 1
P2448 2007 Ford Fusion — Secondary Air Injection System High Air Flow Bank 1
P2448 2008 Ford Fusion — Secondary Air Injection System High Air Flow Bank 1
P2448 2009 Ford Fusion — Secondary Air Injection System High Air Flow Bank 1
P2448 2010 Ford Fusion — Secondary Air Injection System High Air Flow Bank 1
P2448 2011 Ford Fusion — Secondary Air Injection System High Air Flow Bank 1
P2448 2012 Ford Fusion — Secondary Air Injection System High Air Flow Bank 1

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.