P1408 2008 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 2008 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.
Code P1408 2008 Ford Fusion Description
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.
What are the Possible Causes of the DTC P1408 2008 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 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 P1408 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 P1408 2008 Ford Fusion code?
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Frequently Asked Questions about P1408 2008 Ford Fusion Code
1. What does OBDII code P1408 mean for a 2008 Ford Fusion?
The code P1408 indicates that the EGR (Exhaust Gas Recirculation) flow is out of the self-test range in a 2008 Ford Fusion.
2. What are common symptoms of code P1408 in a 2008 Ford Fusion?
Common symptoms include rough idling, engine hesitation, decreased fuel efficiency, and the illumination of the check engine light.
3. What are possible causes of code P1408 in a 2008 Ford Fusion?
Possible causes include a faulty EGR valve, clogged EGR passages, vacuum leaks, wiring issues, or a malfunctioning EGR position sensor.
4. How can I diagnose the issue causing code P1408 in my 2008 Ford Fusion?
Diagnosing the issue may involve checking the EGR valve for proper operation, inspecting for any vacuum leaks, testing the EGR position sensor, and ensuring the EGR passages are clear from any obstructions.
5. Can I still drive my 2008 Ford Fusion with code P1408?
It is not recommended to continue driving your vehicle with code P1408 as it may lead to further engine damage or performance issues. It's best to address the problem promptly.
6. How can I repair code P1408 on my 2008 Ford Fusion?
Repairing code P1408 may involve cleaning or replacing the EGR valve, clearing any blockages in the EGR passages, fixing vacuum leaks, repairing wiring issues, or replacing the EGR position sensor.
7. Is it possible to reset the check engine light after fixing code P1408 on a 2008 Ford Fusion?
Yes, once the underlying issue causing code P1408 is fixed, the check engine light can be reset using an OBDII scanner or by disconnecting the car's battery for a few minutes.
8. Will code P1408 cause my 2008 Ford Fusion to fail emissions testing?
Yes, code P1408 is related to emissions control, and if not addressed, it may cause your vehicle to fail emissions testing.
9. How much does it typically cost to repair code P1408 on a 2008 Ford Fusion?
The cost of repairing code P1408 can vary depending on the specific issue and labor rates in your area. It's recommended to get a diagnostic from a trusted mechanic for an accurate estimate.
10. Can code P1408 in a 2008 Ford Fusion be prevented in the future?
Regular maintenance, such as cleaning the EGR system components and ensuring proper engine health, can help prevent issues like code P1408 from occurring in the future. Regularly checking for vacuum leaks and monitoring the EGR system can also aid in prevention.
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