AutoCodes – Volkswagen – P1424 Volkswagen

P1424 Volkswagen Code - Secondary Air Injection System Bank 1 Leak Detected

Quick Answer

P1424 Volkswagen indicates Secondary Air Injection System Bank 1 Leak Detected. Common causes include Faulty Secondary Air Injection valve, Exhaust leak. 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: P1424 Volkswagen indicates Secondary Air Injection System Bank 1 Leak Detected.
Common causes: Common causes include Faulty Secondary Air Injection valve, Exhaust leak.
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 11,523

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 Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1424 Volkswagen Description

OBDII Code P1424 Volkswagen - Secondary Air Injection System Bank 1 Leak Detected - AutoCodes.com — P1424 Volkswagen Code - Secondary Air Injection System Bank 1 Leak Detected

What does this mean?

What are the Possible Causes of the DTC P1424 Volkswagen?

Faulty Secondary Air Injection valve
Exhaust leak

How to Fix the DTC P1424 Volkswagen?

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 P1424 Volkswagen 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.