P0402 2007 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 2007 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 2007 Ford Fusion Description
What are the Possible Causes of the DTC P0402 2007 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 2007 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 2007 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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Frequently Asked Questions about P0402 2007 Ford Fusion Code
1. What does the OBDII code P0402 mean on a 2007 Ford Fusion?
P0402 indicates that the Engine Control Module (ECM) has detected excessive exhaust gas recirculation (EGR) flow, which can affect engine performance.
2. What are the common symptoms of code P0402 on a 2007 Ford Fusion?
Symptoms include rough idling, poor fuel economy, stalling, engine hesitation, or the Check Engine Light being illuminated.
3. What causes the P0402 code on a 2007 Ford Fusion?
Common causes include a stuck-open EGR valve, clogged EGR passages, a faulty EGR sensor, or issues with the EGR solenoid or valve control circuit.
4. Can a faulty EGR valve cause the P0402 code on a 2007 Ford Fusion?
Yes, a malfunctioning EGR valve that remains open can cause excessive EGR flow, triggering the P0402 code.
5. How do I diagnose the P0402 code on a 2007 Ford Fusion?
Start by inspecting the EGR valve for sticking or carbon buildup, check the vacuum lines, and test the EGR sensor and solenoid for proper operation.
6. Can a clogged EGR passage trigger the P0402 code?
Yes, clogged EGR passages can disrupt exhaust gas flow and lead to excessive pressure in certain parts of the system, causing the P0402 code.
7. Is it safe to drive a 2007 Ford Fusion with the P0402 code?
While the car may still run, driving with a P0402 code can lead to poor performance, higher emissions, and potential engine damage if not addressed promptly.
8. How can I fix the P0402 code on a 2007 Ford Fusion?
Possible fixes include cleaning or replacing the EGR valve, clearing clogged EGR passages, replacing the EGR sensor, or repairing any damaged vacuum lines.
9. Can a bad DPFE sensor cause the P0402 code on a 2007 Ford Fusion?
Yes, a faulty Differential Pressure Feedback EGR (DPFE) sensor can send incorrect readings to the ECM, causing it to detect excessive EGR flow.
10. How much does it cost to repair the P0402 code on a 2007 Ford Fusion?
Repair costs can vary, with EGR valve cleaning or replacement typically costing $150-$400, depending on labor and parts.
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