AutoCodes – Generic – P20E7

P20E7 Code - Reductant Injection Air Pressure Too High

Quick Answer

P20E7 indicates Reductant Injection Air Pressure Too High. 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: P20E7 indicates Reductant Injection Air Pressure Too High.
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.

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Code Popularity 5,623

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P20E7 Description

OBDII Code P20E7 - Reductant Injection Air Pressure Too High - AutoCodes.com — P20E7 Code - Reductant Injection Air Pressure Too High

What does this mean?

What are the Possible Causes of the DTC P20E7?

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 P20E7?

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 P20E7 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 P20E7 code?

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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 P20E7 Code

1. What are common symptoms of OBDII code P20E7 (Reductant Injection Air Pressure Too High)?

- Common symptoms include the check engine light coming on, reduced engine performance, and potential fuel efficiency issues.

2. What can cause the OBDII code P20E7 to be triggered?

- The code P20E7 can be triggered by issues such as a malfunctioning reductant injection air pressure sensor, a clogged reductant injector, or a problem with the reductant injection system.

3. How can I diagnose the cause of OBDII code P20E7?

- Diagnosing the cause of P20E7 typically involves using a scan tool to read the code, checking for any related codes, inspecting the reductant injection system components, and testing the reductant injection air pressure sensor.

4. What are some potential repair tips for fixing OBDII code P20E7?

- Repair tips for addressing P20E7 may include cleaning or replacing the reductant injector, replacing the reductant injection air pressure sensor, checking for any damaged wiring, and ensuring proper system operation.

5. Can driving with OBDII code P20E7 cause further damage to the vehicle?

- Continuing to drive with code P20E7 may lead to decreased vehicle performance, reduced fuel efficiency, and potential damage to the catalytic converter over time.

6. How urgent is it to address OBDII code P20E7?

- It is recommended to address code P20E7 in a timely manner to prevent any further issues with the reductant injection system and ensure optimal vehicle performance.

7. Is it safe to reset the check engine light when OBDII code P20E7 is present?

- While resetting the check engine light may temporarily turn it off, it is important to address the underlying issue causing code P20E7 to prevent potential long-term damage to the vehicle.

8. Can a DIY enthusiast fix OBDII code P20E7 at home?

- Depending on the specific cause of P20E7, some repairs related to the reductant injection system may be possible for DIY enthusiasts with the necessary tools and knowledge.

9. How much does it typically cost to repair OBDII code P20E7 at a mechanic or dealership?

- The cost of repairing P20E7 can vary depending on the specific cause, parts needed, labor involved, and whether the repair is done at a mechanic or dealership. It is recommended to obtain quotes from different sources.

10. Are there any recalls or technical service bulletins related to OBDII code P20E7?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to OBDII code P20E7 to see if there are known issues or solutions available.