P0402 2011 Ford Fusion Code - Exhaust Gas Recirculation Flow Excessive Detected
Quick Answer
The EGR system is monitored for undesired EGR flow during idle. Common causes include EGR volume control valve stuck open, Faulty EGR volume control valve, EGR solenoid valve harness is open or shorted. 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
- P0402 2011 Ford Fusion indicates Exhaust Gas Recirculation Flow Excessive Detected.
- Common causes
- Common causes include EGR volume control valve stuck open, Faulty EGR volume control valve, EGR solenoid valve harness is open or shorted.
- 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 P0402 2011 Ford Fusion Description
What are the Possible Causes of the DTC P0402 2011 Ford Fusion?
- EGR volume control valve stuck open
- Faulty EGR volume control valve
- EGR solenoid valve harness is open or shorted
- EGR solenoid valve circuit poor electrical connection
- Faulty EGR temperature sensor and circuit
How to Fix the DTC P0402 2011 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 P0402 2011 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 P0402 2011 Ford Fusion code?
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Frequently Asked Questions about P0402 2011 Ford Fusion Code
1. What does the OBDII code P0402 mean on a 2011 Ford Fusion?
P0402 indicates that the Exhaust Gas Recirculation (EGR) system is allowing too much exhaust gas to flow into the intake manifold, which can disrupt engine performance.
2. What are the common symptoms of code P0402 on a 2011 Ford Fusion?
Symptoms may include a rough idle, reduced engine power, poor fuel economy, hesitation during acceleration, and the Check Engine Light being illuminated.
3. What causes the P0402 code to appear on a 2011 Ford Fusion?
Common causes include a stuck-open EGR valve, a faulty EGR sensor, carbon buildup in the EGR system, a malfunctioning EGR control solenoid, or issues with the engine’s ECU.
4. Can a dirty EGR valve cause the P0402 code?
Yes, carbon buildup can cause the EGR valve to stick open, leading to excessive exhaust gas flow and triggering the P0402 code.
5. How can I diagnose the P0402 code on my 2011 Ford Fusion?
Start by inspecting the EGR valve for carbon buildup or damage, check the EGR sensor for proper function, and ensure the EGR control solenoid is operating correctly. A scan tool can also help monitor live data from the EGR system.
6. Can I drive my 2011 Ford Fusion with a P0402 code?
Driving with a P0402 code is not recommended as it may lead to reduced engine performance, increased emissions, and potential damage to other components over time.
7. How do I fix the P0402 code on a 2011 Ford Fusion?
Possible fixes include cleaning or replacing the EGR valve, repairing or replacing the EGR sensor, clearing carbon buildup in the EGR passages, or addressing issues with the EGR control solenoid.
8. Could a vacuum leak cause the P0402 code on a 2011 Ford Fusion?
While less common, a vacuum leak affecting the EGR system's operation could contribute to excessive exhaust gas flow and trigger the P0402 code.
9. How much does it cost to fix the P0402 code on a 2011 Ford Fusion?
Repair costs can vary widely. Cleaning the EGR valve can be inexpensive, but replacing the EGR valve or sensor may cost $150 to $400, including parts and labor.
10. Will clearing the code with a scan tool fix the P0402 issue on my 2011 Ford Fusion?
Clearing the code will turn off the Check Engine Light temporarily, but if the underlying issue isn’t addressed, the code will likely return.
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