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Engine-Codes – Audi – P1279 Audi

P1279 Audi Code - Fuel Metering Solenoid Open Circuit/Short To Ground

Quick Answer

The P1279 Audi code indicates a Fuel Metering Solenoid Open Circuit/Short to Ground. Common causes include Faulty fuel metering solenoid, Damaged wiring or connectors, Corrosion in the electrical system. 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
P1279 Audi indicates Fuel Metering Solenoid Open Circuit/Short To Ground.
Common causes
Common causes include Faulty fuel metering solenoid, Damaged wiring or connectors, Corrosion in the electrical system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1279 Audi Description

The P1279 Audi code indicates a Fuel Metering Solenoid Open Circuit/Short to Ground. This means that there is an issue with the fuel metering solenoid in the vehicle's fuel system. The fuel metering solenoid is responsible for controlling the amount of fuel that is injected into the engine cylinders, ensuring proper combustion and engine performance. When this solenoid is open circuit or shorted to ground, it can lead to an imbalance in the fuel mixture, causing the engine to run rough, misfire, or even stall.

OBDII Code P1279 Audi - Fuel Metering Solenoid Open Circuit/Short To Ground
P1279 Audi Code - Fuel Metering Solenoid Open Circuit/Short To Ground

Common Causes of P1279 Audi

  1. Faulty fuel metering solenoid
  2. Damaged wiring or connectors
  3. Corrosion in the electrical system
  4. Poor electrical connection
  5. Electrical short circuit

Symptoms of P1279 Audi

  1. Engine running rough or misfiring
  2. Poor fuel efficiency
  3. Engine stalling or hesitation
  4. Check engine light illuminated
  5. Decreased engine performance

How to Fix P1279 Audi

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P1279 Audi code.
  2. Inspect the fuel metering solenoid, wiring, and connectors for any damage or corrosion.
  3. Test the solenoid for proper functionality using a multimeter.
  4. Replace the fuel metering solenoid if it is found to be faulty.
  5. Clear the error code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1279 Audi

The typical repair costs for addressing a Fuel Metering Solenoid Open Circuit/Short to Ground issue can range from $200 to $500, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more accurate estimate.

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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 P1279 Audi Code

1. What does OBDII code P1279 mean for an Audi?

P1279 indicates a problem with the Fuel Metering Solenoid, specifically an open circuit or a short to ground.

2. What are common symptoms of code P1279 in an Audi?

Symptoms may include rough idle, poor fuel economy, hesitation during acceleration, or difficulty starting the vehicle.

3. What causes code P1279 in an Audi?

Possible causes include a faulty fuel metering solenoid, damaged wiring, corroded connectors, or issues with the vehicle’s ECU.

4. Can I drive my Audi with code P1279 active?

Driving with P1279 is not recommended as it can lead to improper fuel delivery and potentially damage the engine over time.

5. How do I diagnose code P1279 in an Audi?

Start by inspecting the fuel metering solenoid, wiring, and connectors for damage or corrosion. You may also need to test the solenoid with a multimeter.

6. How is code P1279 repaired in an Audi?

Repairs typically involve replacing the fuel metering solenoid, repairing or replacing damaged wiring, or cleaning corroded connectors.

7. How much does it cost to fix code P1279 in an Audi?

Repair costs can vary but may range from $100 to $400 depending on parts and labor.

8. Can a faulty ECU cause code P1279 in an Audi?

Yes, a malfunctioning ECU can sometimes trigger P1279 if it fails to properly control the fuel metering solenoid.

9. Is code P1279 specific to Audi vehicles?

No, P1279 can appear in other vehicles but the specific diagnostic and repair steps may vary by make and model.

10. Can a dirty fuel injector trigger code P1279 in an Audi?

Less likely, as the code is focused on the fuel metering solenoid, but overall fuel system issues can contribute to similar symptoms.

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