AutoCodes – Audi – P1242 Audi

P1242 Audi Code - Injector Circuit Open Cylinder 6

Quick Answer

P1242 Audi indicates Injector Circuit Open Cylinder 6. Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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: P1242 Audi indicates Injector Circuit Open Cylinder 6.
Common causes: Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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 4,443

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jul 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1242 Audi Description

OBDII Code P1242 Audi - Injector Circuit Open Cylinder 6 - AutoCodes.com — P1242 Audi Code - Injector Circuit Open Cylinder 6

What does this mean?

What are the Possible Causes of the DTC P1242 Audi?

Faulty Fuel Injector 6
Fuel Injector 6 harness is open or shorted
Fuel Injector 6 circuit poor electrical connection

How to Fix the DTC P1242 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 P1242 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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Need more information on how to fix the P1242 Audi code? Get Access to Factory Service Manuals

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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 P1242 Audi Code

1. What does the OBDII code P1242 mean on an Audi?

The P1242 code indicates an "Injector Circuit Open" issue for cylinder 6, meaning the vehicle's engine control module (ECM) has detected a fault in the injector circuit for that specific cylinder.

2. What are the common symptoms of the P1242 code?

Common symptoms include rough idling, reduced engine performance, poor fuel economy, engine misfires, and the check engine light turning on.

3. What causes the P1242 code in an Audi?

Potential causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning ECM, or corrosion in the circuit.

4. Can I still drive my Audi with the P1242 code?

Driving with this code is not recommended as it can lead to engine misfires, reduced performance, and potential long-term damage to the engine or catalytic converter.

5. How is the P1242 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the wiring and connectors for cylinder 6, test the fuel injector's resistance, and check for continuity in the circuit.

6. How do I fix the P1242 code on my Audi?

Repairs may involve replacing the faulty fuel injector, repairing or replacing damaged wiring or connectors, cleaning corroded connections, or reprogramming/replacing the ECM if necessary.

7. What tools are needed to diagnose the P1242 code?

Common tools include an OBDII scanner, a multimeter for testing electrical circuits, and possibly specialized tools for accessing injectors.

8. How much does it cost to fix the P1242 code?

Repair costs vary depending on the issue, but replacing a fuel injector typically costs between $200 and $500, while wiring repairs or ECM replacement can cost more.

9. Can a clogged fuel injector cause the P1242 code?

Not typically. While a clogged injector can cause performance issues, the P1242 code specifically refers to an open circuit, which is usually an electrical issue.

10. What happens if I ignore the P1242 code?

Ignoring this code can lead to severe engine misfires, damage to the catalytic converter, reduced fuel efficiency, and potentially more expensive repairs over time.