AutoCodes – Audi – P1438 Audi

P1438 Audi Code - EGR Valve 2 Open Circuit or Short Circuit to Ground

Quick Answer

P1438 Audi indicates EGR Valve 2 Open Circuit or Short Circuit to Ground. Common causes include Faulty EGR Valve, EGR Valve harness is open or shorted, EGR Valve circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1438 Audi indicates EGR Valve 2 Open Circuit or Short Circuit to Ground.
Common causes: Common causes include Faulty EGR Valve, EGR Valve harness is open or shorted, EGR Valve circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 3,172

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1438 Audi Description

OBDII Code P1438 Audi - EGR Valve 2 Open Circuit or Short Circuit to Ground - AutoCodes.com — P1438 Audi Code - EGR Valve 2 Open Circuit or Short Circuit to Ground

What does this mean?

What are the Possible Causes of the DTC P1438 Audi?

Faulty EGR Valve
EGR Valve harness is open or shorted
EGR Valve circuit poor electrical connection

How to Fix the DTC P1438 Audi?

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 P1438 Audi 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.