AutoCodes – Hyundai – P0665 Hyundai

P0665 Hyundai Code - Intake Manifold Tuning Valve Control Circuit High Bank 2

Quick Answer

Intake manifold turning valve is used to increase torque at lower rpm and increase horsepower at higher rpm. Common causes include Faulty Intake Manifold Tuning Valve (IMTV), Intake Manifold Tuning Valve harness is open or shorted, Intake Manifold Tuning Valve circuit poor electrical connection. 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: P0665 Hyundai indicates Intake Manifold Tuning Valve Control Circuit High Bank 2.
Common causes: Common causes include Faulty Intake Manifold Tuning Valve (IMTV), Intake Manifold Tuning Valve harness is open or shorted, Intake Manifold Tuning Valve circuit poor electrical connection.
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 Popularity 6,520

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 05, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0665 Hyundai Description

Intake manifold turning valve is used to increase torque at lower rpm and increase horsepower at higher rpm. Delta 2.7t engine has two intakes runners for each cylinder. The primary intake runner is a long, thin tub in which the intake air passes through. This allows a strong stream of air to blast into the cylinder, helping low-end torque. The secondary intake runner is a short, fat tube. This allows a large volume of air to be sucked into the engine, increasing high-end horse power. At lower rpm range, the engine does not provide enough suction into the cylinders, starving the engine of much needed oxygen. The skinny tube helps blast the air into the cylinder for more oxygen. At higher rpm, the engine has plenty of suction but the intake runner is too small to provide the oxygen it needs. The short, fat tube allows plenty of of oxygen to be sucked in. The Engine Control Module (ECM) controls this function utilizing a intake manifold tuning valve, thereby directing intake air through a longer path for low rpm range or a shorter path for high rpm range.

OBDII Code P0665 Hyundai - Intake Manifold Tuning Valve Control Circuit High Bank 2 - AutoCodes.com — P0665 Hyundai Code - Intake Manifold Tuning Valve Control Circuit High Bank 2

What does this mean?

What are the Possible Causes of the DTC P0665 Hyundai?

Faulty Intake Manifold Tuning Valve (IMTV)
Intake Manifold Tuning Valve harness is open or shorted
Intake Manifold Tuning Valve circuit poor electrical connection

How to Fix the DTC P0665 Hyundai?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0665 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0665 Hyundai code?

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Information for Specific Hyundai Models

P0665 2005 Hyundai Tucson — Intake Manifold Tuning Valve Control Circuit High 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.

Frequently Asked Questions about P0665 Hyundai Code

What does the OBDII code P0665 mean for a Hyundai vehicle?

The P0665 code indicates an issue with the Intake Manifold Tuning Valve Control Circuit High on Bank 2, meaning the circuit voltage is higher than expected.

What are the common symptoms of code P0665 in a Hyundai?

Common symptoms include a check engine light, reduced engine performance, poor acceleration, and decreased fuel efficiency.

What causes the P0665 code on a Hyundai?

Potential causes include a faulty intake manifold tuning valve, damaged wiring or connectors, a malfunctioning control solenoid, or an issue with the powertrain control module (PCM).

How can I diagnose the P0665 code on my Hyundai?

Diagnose by using an OBDII scanner to confirm the code, visually inspecting the wiring and connectors for damage, and testing the intake manifold tuning valve for proper operation.

Can I drive my Hyundai with a P0665 code?

While the car may still be drivable, itâ€™s not recommended since the code can lead to reduced performance, poor fuel economy, and potential engine damage over time.

How do I fix the P0665 code on a Hyundai?

Repairs may include replacing the intake manifold tuning valve, repairing or replacing damaged wiring or connectors, or addressing any PCM-related issues.

What tools are required to fix a P0665 code on a Hyundai?

Common tools include an OBDII scanner, a multimeter for testing electrical connections, and basic hand tools for component replacement.

Is the P0665 code specific to Hyundai vehicles?

No, the P0665 code is a generic OBDII code, but the exact diagnostics and repairs may vary depending on the vehicle make and model.

How much does it cost to repair a P0665 code on a Hyundai?

Repair costs can range from $100 to $500 or more, depending on whether you need simple wiring repairs or a new intake manifold tuning valve.

Can a dirty intake manifold cause a P0665 code in my Hyundai?

While unlikely, excessive carbon buildup in the intake manifold could potentially interfere with the tuning valve's operation, contributing to the issue.