P20E6 Code - Reductant Injection Air Pressure Too Low
Quick Answer
P20E6 indicates Reductant Injection Air Pressure Too Low. Common causes include Faulty Reductant Injection Air Pressure Sensor, Reductant Injection Air Pressure Sensor harness is open or shorted, Reductant Injection Air Pressure Sensor circuit poor electrical connection. 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
- P20E6 indicates Reductant Injection Air Pressure Too Low.
- Common causes
- Common causes include Faulty Reductant Injection Air Pressure Sensor, Reductant Injection Air Pressure Sensor harness is open or shorted, Reductant Injection Air Pressure Sensor circuit poor electrical connection.
- 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.
Code P20E6 Description
What are the Possible Causes of the DTC P20E6?
- Faulty Reductant Injection Air Pressure Sensor
- Reductant Injection Air Pressure Sensor harness is open or shorted
- Reductant Injection Air Pressure Sensor circuit poor electrical connection
How to Fix the DTC P20E6?
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 P20E6 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 P20E6 Code
What does the OBDII code P20E6 mean?
1. The code P20E6 indicates that the reductant injection air pressure, used in the Selective Catalytic Reduction (SCR) system, is too low and outside of the specified range. 2.
What are the common symptoms of code P20E6?
Common symptoms include the Check Engine Light illuminating, reduced fuel efficiency, increased emissions, and in some cases, the vehicle entering limp mode. 3.
What causes the P20E6 code to trigger?
Possible causes include a faulty reductant air pressure sensor, a malfunctioning air compressor, leaks in the air delivery system, or electrical issues such as damaged wires or poor connections. 4.
Can I drive my vehicle with a P20E6 code?
While the vehicle may remain drivable, continuing to drive with this code can lead to increased emissions and potential damage to the SCR system. It’s best to address the issue promptly. 5.
How is the P20E6 code diagnosed?
A technician will typically use a scan tool to confirm the code, inspect the reductant air pressure sensor and related components, check for leaks, and test the air compressor and electrical connections. 6.
How do I fix the P20E6 code?
Repairs may include replacing the reductant air pressure sensor, fixing air system leaks, repairing or replacing the air compressor, or addressing damaged wiring and connections. 7.
Can a dirty air filter cause the P20E6 code?
While uncommon, a severely restricted air filter could affect the air supply to the system. It’s worth inspecting and replacing the air filter if it’s clogged. 8.
How much does it cost to fix the P20E6 code?
Repair costs vary depending on the root cause, but replacing the reductant air pressure sensor or fixing leaks typically ranges from $200 to $600. 9.
Will clearing the P20E6 code with a scan tool fix the issue?
Clearing the code will turn off the Check Engine Light temporarily, but the issue will return unless the underlying problem is resolved. 10.
Can low DEF (Diesel Exhaust Fluid) levels cause the P20E6 code?
No, low DEF levels are not directly related to this code, but maintaining proper DEF levels is essential for the SCR system to function correctly.
Discuss the causes and fixes for P20E6 OBDII Code
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