AutoCodes – Ford – P1408 2009 Ford Fusion

P1408 2009 Ford Fusion Code - EGR Flow Out of Self-Test Range

Quick Answer

The Exhaust Gas Recirculation (EGR) system recirculates a portion of the exhaust gasses into the intake manifold under average vehicle driving conditions to reduce combustion temperatures and exhaust gas NOx content. Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation (EGR) Valve Vacuum hose off or defective, Plugged Exhaust Gas Recirculation (EGR) Valve. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1408 2009 Ford Fusion indicates EGR Flow Out of Self-Test Range.
Common causes: Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation (EGR) Valve Vacuum hose off or defective, Plugged Exhaust Gas Recirculation (EGR) Valve.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 2,142

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 20, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1408 2009 Ford Fusion Description

The Exhaust Gas Recirculation (EGR) system recirculates a portion of the exhaust gasses into the intake manifold under average vehicle driving conditions to reduce combustion temperatures and exhaust gas NOx content. The amount of exhaust gas recirculated varies from zero with a cold engine to a fixed rate for a hot engine with intermediate load and low engine speed.
This test is performed during the Key On Engine Running (KOER) on demand self-test only. The EGR system is commanded ON at a fixed engine speed. The test fails and the Diagnostic Trouble Code (DTC) is output when the measured EGR flow falls above or below the required calibration.

OBDII Code P1408 2009 Ford Fusion - EGR Flow Out of Self-Test Range - AutoCodes.com — P1408 2009 Ford Fusion Code - EGR Flow Out of Self-Test Range

What does this mean?

What are the Possible Causes of the DTC P1408 2009 Ford Fusion?

Faulty Exhaust Gas Recirculation (EGR) Valve
Exhaust Gas Recirculation (EGR) Valve Vacuum hose off or defective
Plugged Exhaust Gas Recirculation (EGR) Valve

How to Fix the DTC P1408 2009 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 does this mean?

Code Tech Notes

Also see P0400 and P0401.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1408 2009 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.

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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 P1408 2009 Ford Fusion Code

1. What are common symptoms of OBDII code P1408 on a 2009 Ford Fusion?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What does the OBDII code P1408 on a 2009 Ford Fusion indicate?

- The code P1408 indicates that the EGR (Exhaust Gas Recirculation) flow is out of the self-test range set by the vehicle's onboard computer.

3. What are possible causes of OBDII code P1408 on a 2009 Ford Fusion?

- Possible causes include a faulty EGR valve, clogged EGR passages, wiring issues, vacuum leaks, or a malfunctioning EGR position sensor.

4. How can I diagnose the OBDII code P1408 on my 2009 Ford Fusion?

- Diagnosing the code typically involves checking the EGR valve, inspecting for clogs in the EGR system, testing the EGR position sensor, and scanning for any related trouble codes.

5. Can I continue driving my 2009 Ford Fusion with the OBDII code P1408?

- It is not recommended to drive the vehicle with the code P1408 present, as it can lead to poor engine performance and potential damage if not addressed promptly.

6. How can I repair OBDII code P1408 on a 2009 Ford Fusion?

- Repairing the code may involve cleaning or replacing the EGR valve, clearing any obstructions in the EGR system, fixing wiring issues, or replacing the EGR position sensor.

7. Is it possible to reset the OBDII code P1408 on a 2009 Ford Fusion?

- Yes, after addressing the underlying issue causing the code, you can reset the Check Engine Light and clear the code using an OBDII scanner.

8. How much does it cost to fix OBDII code P1408 on a 2009 Ford Fusion?

- The cost of fixing the code can vary depending on the specific issue causing it. Repairs may range from DIY cleaning to professional EGR valve replacement, with costs varying accordingly.

9. Can a clogged EGR system cause OBDII code P1408 on a 2009 Ford Fusion?

- Yes, a clogged EGR system can restrict proper exhaust gas flow, triggering the code P1408 due to the EGR flow being out of the self-test range.

10. Are there any preventive maintenance tips to avoid OBDII code P1408 on a 2009 Ford Fusion?

- Regularly inspecting and cleaning the EGR system, ensuring proper engine maintenance, and using quality fuel can help prevent issues that may lead to code P1408.