Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the engine that helps control how air goes into it. It's like a door that isn't opening or closing properly, and it's on the side of the engine where the second row of cylinders is.
The P0663 code indicates that the engine control module (ECM) has detected an open circuit or malfunction in the intake manifold tuning valve control circuit for bank 2.
The intake manifold tuning valve is responsible for optimizing the air flow into the engine cylinders to improve performance and efficiency. Bank 2 refers to the side of the engine that contains the second set of cylinders. An open circuit or fault in this system can lead to suboptimal engine performance.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty intake manifold tuning valve
• Damaged wiring or connectors in the circuit
• Faulty ECM (Engine Control Module)
ECM: Engine Control Module
Bank 2: The side of the engine with the second set of cylinders
Intake Manifold: A part of the engine that distributes air to the cylinders
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the intake manifold tuning valve for proper operation.
• Replace or repair damaged wiring or connectors.
• Replace the intake manifold tuning valve if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly inspect engine wiring for damage.
• Perform routine engine maintenance.
• Keep the engine clean to prevent debris from affecting components.
Engine Performance
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure.
• Regular maintenance can prevent such issues.
Check with your vehicle manufacturer for warranty coverage on engine components.
This code has been associated with issues in vehicles with complex intake manifold systems, often seen in V6 and V8 engines.
Moderate – While not immediately critical, it should be addressed to prevent further engine performance issues.
Driving with a malfunctioning engine component can lead to increased emissions and reduced vehicle safety.
• Engine at operating temperature
• Vehicle in idle or low-speed operation
The intake manifold tuning valve is located on the intake manifold, typically on the side of the engine with the second set of cylinders (Bank 2).
Q: Can I drive with a P0663 code?
A: It's possible to drive short distances, but it's not recommended as it can lead to reduced engine performance and efficiency.
Q: What happens if I ignore the P0663 code?
A: Ignoring the code can lead to poor engine performance, increased fuel consumption, and potential damage to other engine components.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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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.