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Engine-Codes – Generic – P3418

P3418 Code - Cylinder 3 Deactivation/Intake Valve Control Performance

Quick Answer

The diagnostic trouble code P3418 indicates an issue with the Cylinder 3 Deactivation/Intake Valve Control Performance in the vehicle's engine. Common causes include Faulty intake valve control solenoid, Wiring issues or electrical connection problems, Mechanical issues with the intake valve system. 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
P3418 indicates Cylinder 3 Deactivation/Intake Valve Control Performance.
Common causes
Common causes include Faulty intake valve control solenoid, Wiring issues or electrical connection problems, Mechanical issues with the intake valve system.
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 14, 2024
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Code P3418 Description

The diagnostic trouble code P3418 indicates an issue with the Cylinder 3 Deactivation/Intake Valve Control Performance in the vehicle's engine. This code is specific to vehicles equipped with cylinder deactivation technology, which allows certain cylinders to shut down under light load conditions to improve fuel efficiency. In this case, Cylinder 3 is not deactivating or activating properly, affecting the engine's performance.

OBDII Code P3418 - Cylinder 3 Deactivation/Intake Valve Control Performance
P3418 Code - Cylinder 3 Deactivation/Intake Valve Control Performance

Common Causes of P3418

  1. Faulty intake valve control solenoid
  2. Wiring issues or electrical connection problems
  3. Mechanical issues with the intake valve system
  4. ECM software glitches or malfunctions
  5. Low engine oil levels or poor oil quality affecting cylinder deactivation

Symptoms of P3418

  1. Check Engine Light illuminated
  2. Reduced fuel efficiency
  3. Engine misfires
  4. Rough idling
  5. Loss of power during acceleration

How to Fix P3418

  1. Perform a thorough diagnostic scan to confirm the P3418 trouble code and identify the specific cause of the issue.
  2. Inspect the intake valve control solenoid for proper operation and replace if faulty.
  3. Check the wiring and connections related to the intake valve control system for any damage or corrosion, repairing or replacing as necessary.
  4. Verify proper oil levels and quality, addressing any issues that may be affecting cylinder deactivation.
  5. Clear the trouble code from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P3418

The typical repair costs for addressing the P3418 trouble code can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that rates at auto repair shops can vary based on location, vehicle make and model, and engine type. It's recommended to obtain quotes from local shops to get a more accurate estimate for your specific situation.

When is the Code Detected?

The control module detects that the actual measured values from the MAF sensor, MAP sensor, and TP sensor, is not within the range of the calculated values for cylinder deactivation mode

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Code P3418 Information for Specific Makes

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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