P2079 Mercury Code - Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent
Quick Answer
The P2079 diagnostic trouble code (DTC) for Mercury vehicles indicates a problem with the Intake Manifold Tuning Valve Position Sensor/Switch Circuit being intermittent. Common causes include Faulty Intake Manifold Tuning Valve Position Sensor/Switch, Damaged or corroded wiring connected to the sensor, Electrical issues, such as short circuits or open circuits. 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 Mercury indicates Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent.
- Common causes
- Common causes include Faulty Intake Manifold Tuning Valve Position Sensor/Switch, Damaged or corroded wiring connected to the sensor, Electrical issues, such as short circuits or open circuits.
- 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 P2079 Mercury Description
The P2079 diagnostic trouble code (DTC) for Mercury vehicles indicates a problem with the Intake Manifold Tuning Valve Position Sensor/Switch Circuit being intermittent. This sensor is responsible for monitoring the position of the intake manifold tuning valve, which helps regulate the airflow into the engine. The intake manifold tuning valve plays a crucial role in optimizing engine performance by adjusting the length of the intake manifold runners to improve air intake efficiency at different engine speeds.
Common Causes of P2079 Mercury
- Faulty Intake Manifold Tuning Valve Position Sensor/Switch
- Damaged or corroded wiring connected to the sensor
- Electrical issues, such as short circuits or open circuits
- Loose connections in the sensor circuit
- Engine vibrations causing sensor malfunction
Symptoms of P2079 Mercury
- Decreased engine performance
- Reduced fuel efficiency
- Rough idling or stalling
- Illuminated check engine light
- Difficulty starting the vehicle
How to Fix P2079 Mercury
- Use an OBD-II scanner to confirm the P2079 code and pinpoint the exact issue.
- Inspect the wiring and connections associated with the Intake Manifold Tuning Valve Position Sensor/Switch for any damage or corrosion.
- Test the sensor itself to determine if it is functioning properly or needs replacement.
- Replace the faulty sensor or repair any damaged wiring.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2079 Mercury
The typical repair costs for addressing a P2079 code on a Mercury vehicle can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.
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