Engine-CodesDodge – P2079 Dodge

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

Quick Answer

The P2079 diagnostic trouble code (DTC) for Dodge 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 wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections. 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 Dodge indicates Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent.
Common causes
Common causes include Faulty Intake Manifold Tuning Valve Position Sensor/Switch, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2079 Dodge Description

The P2079 diagnostic trouble code (DTC) for Dodge vehicles indicates a problem with the Intake Manifold Tuning Valve Position Sensor/Switch Circuit being intermittent. This sensor or switch is responsible for monitoring the position of the intake manifold tuning valve, which adjusts the length of the intake manifold runners to optimize airflow and increase engine performance. When the sensor detects an intermittent issue with the circuit, it means that there is a sporadic interruption in the communication between the sensor and the engine control module (ECM).

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

Common Causes of P2079 Dodge

  1. Faulty Intake Manifold Tuning Valve Position Sensor/Switch
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or contamination in the sensor connections
  4. ECM software or hardware issues
  5. Mechanical problem with the intake manifold tuning valve

Symptoms of P2079 Dodge

  1. Engine hesitation or stumbling during acceleration
  2. Rough idling or stalling
  3. Decreased fuel efficiency
  4. Check Engine Light illuminated
  5. Lack of power or responsiveness from the engine

How to Fix P2079 Dodge

  1. Perform a visual inspection of the sensor and wiring connections to check for any visible damage or corrosion.
  2. Use a multimeter to test the sensor for proper voltage and resistance values according to manufacturer specifications.
  3. Inspect the wiring harness for any breaks or shorts and repair or replace as needed.
  4. Clean the sensor connections and ensure a secure connection to the ECM.
  5. If the sensor is determined to be faulty, replace it with a new one and retest the system for proper operation.

Cost to Fix P2079 Dodge

The typical repair costs for addressing a P2079 code in a Dodge vehicle can range from $150 to $400, depending on the specific cause of the issue and the cost of the replacement parts. This estimate includes both parts and labor. However, it's important to note that diagnostic time and labor rates can vary between auto repair shops, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and engine type can also influence the final repair costs. It is recommended to obtain quotes from multiple repair shops to find the best price for resolving this issue.

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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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