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Engine-Codes – Generic – P0664

P0664 Code - Intake Manifold Tuning Valve Control Circuit Low Bank 2

Quick Answer

The P0664 diagnostic trouble code (DTC) refers to the Intake Manifold Tuning Valve Control Circuit Low Bank 2. Common causes include Faulty intake manifold tuning valve, Wiring issues or poor electrical connections, Malfunctioning Engine Control Module (ECM). 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
P0664 indicates Intake Manifold Tuning Valve Control Circuit Low Bank 2.
Common causes
Common causes include Faulty intake manifold tuning valve, Wiring issues or poor electrical connections, Malfunctioning Engine Control Module (ECM).
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 16, 2024
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Code P0664 Description

The P0664 diagnostic trouble code (DTC) refers to the Intake Manifold Tuning Valve Control Circuit Low Bank 2. This code indicates that there is a problem with the control circuit for the intake manifold tuning valve on the second bank of the engine. The intake manifold tuning valve is responsible for adjusting the length of the intake manifold runners to optimize airflow and improve engine performance at different RPM ranges.

OBDII Code P0664 - Intake Manifold Tuning Valve Control Circuit Low Bank 2
P0664 Code - Intake Manifold Tuning Valve Control Circuit Low Bank 2

Common Causes of P0664

  1. Faulty intake manifold tuning valve
  2. Wiring issues or poor electrical connections
  3. Malfunctioning Engine Control Module (ECM)
  4. Vacuum leaks in the intake system
  5. Carbon buildup in the intake manifold

Symptoms of P0664

  1. Check Engine Light illuminated
  2. Reduced engine performance
  3. Rough idling or stalling
  4. Decreased fuel efficiency
  5. Engine misfires

How to Fix P0664

  1. Begin by conducting a visual inspection of the intake manifold tuning valve and its wiring harness to check for any obvious signs of damage or wear.
  2. Use a multimeter to test the voltage at the intake manifold tuning valve control circuit to determine if it is within the specified range.
  3. Inspect the wiring harness for any breaks, shorts, or corrosion, and repair or replace as necessary.
  4. Test the intake manifold tuning valve itself to ensure it is functioning properly, and replace if faulty.
  5. Clear the DTC with a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0664

The cost of repairing a P0664 code can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $100 to $200. Overall, the total repair cost can be estimated to be between $200 and $500. It's important to note that these are rough estimates, and actual costs may vary based on the vehicle make and model, as well as the location and labor rates of the auto repair shop. It is recommended to consult with a professional mechanic for a more accurate cost estimate.

When is the Code Detected?

The Engine Control Module (ECM) has detected a low signal from the Intake Manifold Tuning Valve (IMTV)

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Code P0664 Information for Specific Makes

  • P0664 Ford — Intake Manifold Tuning Valve Control Circuit Low Bank 2
  • P0664 Hyundai — Intake Manifold Tuning Valve Control Circuit Low Bank 2
  • P0664 KIA — Intake Manifold Tuning Valve Control Circuit Low Bank 2
  • P0664 Lincoln — Intake Manifold Tuning Valve Control Circuit Low Bank 2
  • P0664 Mazda — Intake Manifold Tuning Valve Control Circuit Low Bank 2
  • P0664 Mercury — Intake Manifold Tuning Valve Control Circuit Low Bank 2
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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