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P2079 Ford Code - Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent

Quick Answer

The P2079 Ford diagnostic trouble code indicates a problem with the Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent. Common causes include Faulty Sensor: A malfunctioning intake manifold tuning valve position sensor can trigger this code, Damaged Wiring: Corrosion, fraying, or breaks in the wiring connected to the sensor can cause intermittent circuit issues, Poor Connection: Loose or corroded connections between the sensor and the engine control module can disrupt communication. 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
P2079 Ford indicates Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent.
Common causes
Common causes include Faulty Sensor: A malfunctioning intake manifold tuning valve position sensor can trigger this code, Damaged Wiring: Corrosion, fraying, or breaks in the wiring connected to the sensor can cause intermittent circuit issues, Poor Connection: Loose or corroded connections between the sensor and the engine control module can disrupt communication.
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 06, 2024
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Code P2079 Ford Description

The P2079 Ford diagnostic trouble code indicates a problem with the Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent. This sensor is responsible for monitoring the position of the intake manifold tuning valve, which controls the airflow into the engine. The intake manifold tuning valve helps optimize engine performance by adjusting the length of the intake runners based on driving conditions.

OBDII Code P2079 Ford - Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent
P2079 Ford Code - Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent

Common Causes of P2079 Ford

  1. Faulty Sensor: A malfunctioning intake manifold tuning valve position sensor can trigger this code.
  2. Damaged Wiring: Corrosion, fraying, or breaks in the wiring connected to the sensor can cause intermittent circuit issues.
  3. Poor Connection: Loose or corroded connections between the sensor and the engine control module can disrupt communication.
  4. Electronic Control Module (ECM) Failure: A malfunctioning ECM can also lead to intermittent circuit issues with the sensor.

Symptoms of P2079 Ford

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Reduced Power: The engine may experience a loss of power or decreased acceleration due to incorrect airflow adjustments.
  3. Rough Idle: The engine may idle roughly or inconsistently due to a disruption in the intake manifold tuning valve position sensor circuit.
  4. Poor Fuel Economy: The vehicle may experience reduced fuel efficiency as a result of improper airflow regulation.

How to Fix P2079 Ford

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the fault code and pinpoint the exact cause of the problem.
  2. Inspect Wiring: Thoroughly inspect the wiring connected to the intake manifold tuning valve position sensor for any damage or corrosion.
  3. Test Sensor: Test the sensor to determine if it is functioning properly or if it needs to be replaced.
  4. Check Connections: Ensure that the connections between the sensor and the ECM are secure and free of debris or corrosion.
  5. Replace Sensor: If the sensor is found to be faulty, replace it with a new one and reset the fault code.

Cost to Fix P2079 Ford

The typical repair costs for addressing a P2079 Ford code can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary depending on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more accurate estimate. Keep in mind that rates may be higher in metropolitan areas or at dealerships, while independent shops often offer more competitive prices.

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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.

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