P20EE Ford Code - SCR NOx Catalyst Efficiency Below Threshold Bank 1
Quick Answer
The P20EE Ford code indicates that the Selective Catalytic Reduction (SCR) system's efficiency in reducing nitrogen oxide (NOx) emissions is below the required threshold for Bank 1. Common causes include Malfunctioning SCR Catalyst: The catalyst itself may be damaged or degraded, leading to reduced efficiency, Faulty NOx Sensor: A malfunctioning NOx sensor can provide inaccurate readings to the engine control module, affecting the SCR system's operation, Diesel Exhaust Fluid (DEF) Contamination: Contaminated or low-quality DEF can impact the SCR system's effectiveness. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P20EE Ford indicates SCR NOx Catalyst Efficiency Below Threshold Bank 1.
- Common causes
- Common causes include Malfunctioning SCR Catalyst: The catalyst itself may be damaged or degraded, leading to reduced efficiency, Faulty NOx Sensor: A malfunctioning NOx sensor can provide inaccurate readings to the engine control module, affecting the SCR system's operation, Diesel Exhaust Fluid (DEF) Contamination: Contaminated or low-quality DEF can impact the SCR system's effectiveness.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P20EE Ford Description
The P20EE Ford code indicates that the Selective Catalytic Reduction (SCR) system's efficiency in reducing nitrogen oxide (NOx) emissions is below the required threshold for Bank 1. This system is crucial for reducing harmful emissions, particularly NOx, which contributes to air pollution and smog. When the SCR catalyst efficiency is below the threshold, it means that the system is not effectively converting harmful emissions into less harmful substances, impacting the vehicle's environmental footprint. This issue can also lead to failing emissions tests, reduced fuel efficiency, and potential damage to other engine components over time.
Common Causes of P20EE Ford
- Malfunctioning SCR Catalyst: The catalyst itself may be damaged or degraded, leading to reduced efficiency.
- Faulty NOx Sensor: A malfunctioning NOx sensor can provide inaccurate readings to the engine control module, affecting the SCR system's operation.
- Diesel Exhaust Fluid (DEF) Contamination: Contaminated or low-quality DEF can impact the SCR system's effectiveness.
- Exhaust Leaks: Leaks in the exhaust system can cause emissions to bypass the SCR catalyst, reducing efficiency.
Symptoms of P20EE Ford
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
- Reduced Fuel Efficiency: A decrease in fuel efficiency may be noticeable due to the inefficient conversion of emissions.
- Failed Emissions Test: If the SCR system is not functioning properly, the vehicle may fail emissions tests.
- Engine Performance Issues: The vehicle may experience rough idling, hesitation, or lack of power due to the impact on engine performance.
How to Fix P20EE Ford
- Diagnose the Issue: Use a diagnostic scanner to retrieve the specific fault codes and pinpoint the underlying cause of the efficiency below threshold.
- Inspect SCR Components: Check the SCR catalyst, NOx sensor, and DEF system for any signs of damage or contamination.
- Replace Defective Parts: Replace the faulty SCR catalyst, NOx sensor, or DEF system components with new, OEM parts.
- Clear Fault Codes: After replacing the defective components, clear the fault codes and reset the system to see if the issue is resolved.
- Perform Emissions Test: Finally, conduct an emissions test to ensure that the SCR system is now operating within the required efficiency levels.
Cost to Fix P20EE Ford
The cost of repairing a P20EE Ford code can vary depending on the specific cause of the issue and the labor rates in your area. Generally, the repair costs for this issue can range from $500 to $1500, including parts and labor. Keep in mind that rates at auto repair shops can vary, so it's advisable to get a few quotes from different shops before proceeding with the repair.
Tech Notes for P20EE Ford
2011-2012 Ford F-Super Duty Factory Service Bulletin OBDII Code P20EE
Need more information about the P20EE Ford code?
Need more information on how to fix the P20EE Ford code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P20EE Ford code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P20EE Ford Code
1. What are the common symptoms of OBDII code P20EE in a Ford, indicating SCR NOx Catalyst Efficiency Below Threshold Bank 1?
- Common symptoms include the check engine light coming on, reduced engine performance, and potential fuel efficiency issues.
2. What are the possible causes of the P20EE code in a Ford vehicle?
- The P20EE code can be triggered by issues such as a faulty NOx sensor, a malfunctioning SCR (Selective Catalytic Reduction) system, or a problem with the catalyst itself.
3. How serious is the SCR NOx Catalyst Efficiency Below Threshold Bank 1 fault code in a Ford?
- While the vehicle may still be drivable with this fault, it is important to address it promptly to prevent potential long-term damage to the catalytic converter and ensure the vehicle meets emission standards.
4. Can driving with the P20EE code active cause further damage to the vehicle?
- Continuing to drive with the P20EE code may lead to increased emissions, reduced fuel efficiency, and potential damage to the catalytic converter over time.
5. What are some DIY repair tips for addressing the P20EE code in a Ford?
- DIY repair options may include checking for loose connections in the SCR system, ensuring proper DEF (diesel exhaust fluid) levels, and inspecting the NOx sensor for any visible damage.
6. How can a mechanic diagnose the P20EE code in a Ford?
- A mechanic can use a diagnostic scanner to retrieve the specific trouble code, perform tests on the NOx sensor and SCR system components, and inspect the catalyst for any signs of deterioration.
7. Is it safe to continue driving the vehicle after resetting the P20EE code?
- It is generally safe to drive the vehicle after resetting the code, but if the underlying issue is not addressed, the code is likely to reappear, and emission levels may remain out of compliance.
8. How much does it typically cost to repair the SCR NOx Catalyst Efficiency Below Threshold Bank 1 fault in a Ford?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred dollars for sensor replacement to over a thousand dollars for more extensive repairs involving the SCR system.
9. Can a dirty fuel system contribute to triggering the P20EE code in a Ford?
- Yes, a dirty fuel system can potentially affect the efficiency of the SCR system and trigger the P20EE code, making regular fuel system maintenance important for emission control.
10. Are there any recalls or technical service bulletins related to the P20EE code in Ford vehicles?
- It's recommended to check with Ford or a certified dealership for any existing recalls or technical service bulletins related to the SCR NOx Catalyst Efficiency Below Threshold Bank 1 fault to see if the repair may be covered under warranty.
Discuss the causes and fixes for P20EE Ford OBDII Code
Code P20EE Ford comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.