AutoCodes – Generic – P20A7

P20A7 Code - Reductant Injection Air Pressure Control Valve Performance

Quick Answer

P20A7 indicates Reductant Injection Air Pressure Control Valve Performance. Common causes include Faulty Reductant Injection Air Pressure Control Valve, Reductant Injection Air Pressure Control Valve harness is open or shorted, Reductant Injection Air Pressure Control Valve 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: P20A7 indicates Reductant Injection Air Pressure Control Valve Performance.
Common causes: Common causes include Faulty Reductant Injection Air Pressure Control Valve, Reductant Injection Air Pressure Control Valve harness is open or shorted, Reductant Injection Air Pressure Control Valve 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 5,197

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
Comments
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Code P20A7 Description

OBDII Code P20A7 - Reductant Injection Air Pressure Control Valve Performance - AutoCodes.com — P20A7 Code - Reductant Injection Air Pressure Control Valve Performance

What does this mean?

What are the Possible Causes of the DTC P20A7?

Faulty Reductant Injection Air Pressure Control Valve
Reductant Injection Air Pressure Control Valve harness is open or shorted
Reductant Injection Air Pressure Control Valve circuit poor electrical connection

How to Fix the DTC P20A7?

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 P20A7 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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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.