Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a part called the intake manifold that helps control how air gets into the engine. There's a sensor that tells the car's computer how this part is working. This code means that the sensor is not sending a steady signal, like when a light bulb flickers on and off.
The P2079 code indicates an intermittent issue with the sensor or switch that monitors the position of the intake manifold tuning valve on bank 1.
The intake manifold tuning (IMT) valve adjusts the air flow into the engine for optimal performance. The position sensor/switch provides feedback to the engine control module (ECM) about the valve's position. An intermittent circuit issue suggests that the signal from the sensor is inconsistent, which can affect engine efficiency.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty IMT valve position sensor
• Wiring issues or loose connections
• Faulty ECM
Intake Manifold: A part of the engine that distributes air to the cylinders.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the IMT valve position sensor.
• Test the sensor for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the IMT valve position sensor if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain engine wiring.
• Ensure sensors are clean and functioning.
• Keep the ECM updated with the latest software.
Sensor Issue
• Address the issue promptly to avoid further engine problems.
• Consult a professional mechanic if unsure about the repair.
Check vehicle warranty for coverage on engine components and sensors.
This code has been reported in vehicles with aging sensors or wiring issues, particularly in models over five years old.
Moderate – While the car may still run, ignoring the issue can lead to decreased performance and fuel efficiency.
Driving with a malfunctioning sensor can lead to engine performance issues, which may affect safety.
• Engine at operating temperature
• Vehicle in idle or driving conditions
The IMT valve and its position sensor are typically located on the intake manifold, which is near the top of the engine.
Q: Can I drive with a P2079 code?
A: It's possible to drive, but it's not recommended as it can lead to reduced performance and fuel economy.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of your vehicle's sensors and wiring can help prevent this issue.
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Fitment Required · Vehicle-fitment part
Relevant for airflow, fuel-trim, and intake-metering faults after confirming the sensor is actually at fault.
Airflow and fuel-trim codes can involve the mass air flow sensor after proper diagnosis.
Verify the sensor design and fitment for your exact vehicle.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.