AutoCodes – Ford – P0403 2008 Ford Fusion

P0403 2008 Ford Fusion Code - Exhaust Gas Recirculation Control Circuit

Quick Answer

The EEGR system is continuously monitored to check the four EEGR motor coils, circuits, and the Powertrain Control Module (PCM) for opens, shorts to voltage and ground. Common causes include Faulty EGR volume control solenoid valve, EGR volume control solenoid valve harness is open or shorted, EGR volume control solenoid valve circuit poor electrical connection. 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: P0403 2008 Ford Fusion indicates Exhaust Gas Recirculation Control Circuit .
Common causes: Common causes include Faulty EGR volume control solenoid valve, EGR volume control solenoid valve harness is open or shorted, EGR volume control solenoid valve circuit poor electrical connection.
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 4,994

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0403 2008 Ford Fusion Description

The EEGR system is continuously monitored to check the four EEGR motor coils, circuits, and the Powertrain Control Module (PCM) for opens, shorts to voltage and ground. If a concern is detected, the EEGR system is disabled and additional monitoring is suspended for the remainder of the drive until the next drive cycle.

OBDII Code P0403 2008 Ford Fusion - Exhaust Gas Recirculation Control Circuit - AutoCodes.com — P0403 2008 Ford Fusion Code - Exhaust Gas Recirculation Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0403 2008 Ford Fusion?

Faulty EGR volume control solenoid valve
EGR volume control solenoid valve harness is open or shorted
EGR volume control solenoid valve circuit poor electrical connection
EGR temperature sensor and circuit

How to Fix the DTC P0403 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 P0403 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.

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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 P0403 2008 Ford Fusion Code

1. What does the OBDII code P0403 mean on a 2008 Ford Fusion?

The code P0403 indicates a problem with the Exhaust Gas Recirculation (EGR) control circuit in the vehicle.

2. What are common symptoms of a P0403 code in a 2008 Ford Fusion?

Common symptoms of a P0403 code may include rough idling, engine stalling, decreased fuel efficiency, and the illumination of the Check Engine Light.

3. What are possible causes of a P0403 code on a 2008 Ford Fusion?

Potential causes of a P0403 code include a faulty EGR valve, clogged EGR passages, damaged wiring or connectors in the EGR control circuit, or a malfunctioning EGR position sensor.

4. How can I diagnose a P0403 code on a 2008 Ford Fusion?

Diagnosing a P0403 code typically involves checking the EGR valve for proper operation, inspecting the EGR system for any blockages, and testing the wiring and connectors in the EGR control circuit.

5. Can a P0403 code be fixed at home on a 2008 Ford Fusion?

Depending on the underlying cause, some DIY enthusiasts may be able to address a P0403 code at home by cleaning the EGR system, replacing the EGR valve, or repairing damaged wiring or connectors.

6. Is it safe to continue driving with a P0403 code on a 2008 Ford Fusion?

It is generally not recommended to drive with a P0403 code as it can lead to poor engine performance and potential damage over time. It's best to address the issue promptly.

7. How much does it typically cost to repair a P0403 code on a 2008 Ford Fusion?

The cost of repairing a P0403 code can vary depending on the exact cause of the issue. It may range from a few hundred dollars for simple fixes to more expensive repairs for complex EGR system problems.

8. Can a P0403 code on a 2008 Ford Fusion affect emissions testing?

Yes, a P0403 code can affect emissions testing as it indicates a problem with the EGR system, which plays a crucial role in reducing harmful emissions from the vehicle.

9. Are there any preventative maintenance steps to avoid a P0403 code on a 2008 Ford Fusion?

Regularly servicing the EGR system, using high-quality engine oil, and driving the vehicle gently can help prevent issues that may trigger a P0403 code.

10. How long does it take to repair a P0403 code on a 2008 Ford Fusion?

The repair time for a P0403 code can vary based on the specific cause of the issue and the expertise of the mechanic. It may take anywhere from a few hours to a full day to address the problem effectively.