Engine-CodesChrysler – P20F6 Chrysler

P20F6 Chrysler Code - Reductant Injection Valve Stuck Open Bank 1 Unit 1

Quick Answer

The P20F6 diagnostic trouble code (DTC) for Chrysler vehicles indicates that the reductant injection valve on Bank 1 Unit 1 is stuck open. Common causes include Mechanical failure of the reductant injection valve, Electrical issues in the control circuit, Sensor malfunctions providing incorrect feedback to the ECM. 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
P20F6 Chrysler indicates Reductant Injection Valve Stuck Open Bank 1 Unit 1.
Common causes
Common causes include Mechanical failure of the reductant injection valve, Electrical issues in the control circuit, Sensor malfunctions providing incorrect feedback to the ECM.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P20F6 Chrysler Description

The P20F6 diagnostic trouble code (DTC) for Chrysler vehicles indicates that the reductant injection valve on Bank 1 Unit 1 is stuck open. This code is specifically related to the vehicle's Selective Catalytic Reduction (SCR) system, which is a crucial component in reducing harmful emissions from the exhaust gases. The reductant injection valve is responsible for injecting a urea-based solution, commonly known as Diesel Exhaust Fluid (DEF), into the exhaust stream to break down harmful nitrogen oxides into harmless nitrogen and water vapor.

OBDII Code P20F6 Chrysler - Reductant Injection Valve Stuck Open Bank 1 Unit 1
P20F6 Chrysler Code - Reductant Injection Valve Stuck Open Bank 1 Unit 1

Common Causes of P20F6 Chrysler

  1. Mechanical failure of the reductant injection valve
  2. Electrical issues in the control circuit
  3. Sensor malfunctions providing incorrect feedback to the ECM
  4. Contamination of the DEF fluid
  5. Corrosion or blockage in the SCR system components

Symptoms of P20F6 Chrysler

  1. Decreased engine performance
  2. Increased fuel consumption
  3. Illumination of the Check Engine Light
  4. Elevated emissions levels
  5. Reduced DEF efficiency

How to Fix P20F6 Chrysler

  1. Perform a thorough inspection of the reductant injection valve and associated components.
  2. Test the electrical circuitry to ensure proper voltage and signal transmission.
  3. Check the sensors in the SCR system for accuracy and replace if necessary.
  4. Clean or replace contaminated DEF fluid and flush the system.
  5. Reset the ECM and clear the DTC to verify the repair.

Cost to Fix P20F6 Chrysler

The typical repair costs for addressing a P20F6 code can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the cost of parts for a reductant injection valve replacement can range from $200 to $500, while labor costs can range from $150 to $300. Overall, the total repair cost could range from $350 to $800. It's important to note that labor rates and part prices can vary significantly based on factors such as location, vehicle make and model, and the specific repair shop chosen. It's advisable to obtain quotes from multiple reputable auto repair shops to ensure a fair price for the repair.

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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.

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