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Engine-Codes – Infiniti – P1607 Infiniti

P1607 Infiniti Code - VVEL Control Module

Quick Answer

The P1607 Infiniti code indicates a problem with the VVEL (Variable Valve Event and Lift) Control Module. Common causes include Faulty VVEL control module, Wiring or connection issues, Sensor malfunction. 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
P1607 Infiniti indicates VVEL Control Module.
Common causes
Common causes include Faulty VVEL control module, Wiring or connection issues, Sensor malfunction.
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 Aug 19, 2024
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Code P1607 Infiniti Description

The P1607 Infiniti code indicates a problem with the VVEL (Variable Valve Event and Lift) Control Module. This module is responsible for controlling the intake valve timing and lift to optimize engine performance and fuel efficiency. When this module malfunctions, it can lead to issues with engine performance, fuel economy, and emissions.

OBDII Code P1607 Infiniti - VVEL Control Module
P1607 Infiniti Code - VVEL Control Module

Common Causes of P1607 Infiniti

  1. Faulty VVEL control module
  2. Wiring or connection issues
  3. Sensor malfunction
  4. Engine timing belt or chain problems
  5. ECM (Engine Control Module) issues

Symptoms of P1607 Infiniti

  1. Rough idling or stalling
  2. Decreased acceleration and power
  3. Poor fuel economy
  4. Illumination of the Check Engine Light
  5. Engine misfires

How to Fix P1607 Infiniti

  1. Use a diagnostic scanner to retrieve the specific error code and confirm the VVEL control module as the issue.
  2. Inspect the wiring and connections for any damage or corrosion, repairing or replacing as necessary.
  3. Test the sensors related to the VVEL system for proper functioning.
  4. Replace the VVEL control module if it is found to be faulty.
  5. Clear the error code and reset the ECM to ensure proper functioning.

Cost to Fix P1607 Infiniti

The cost of repairing a P1607 Infiniti code can vary depending on the specific cause of the issue. On average, the cost of replacing a VVEL control module can range from $300 to $800, including parts and labor. However, prices may differ based on the location of the repair shop, the vehicle's make and model, and the extent of the repairs needed. It's recommended to consult with a trusted mechanic for an accurate estimate.

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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 P1607 Infiniti Code

1. What does the OBDII code P1607 mean on an Infiniti?

P1607 indicates a malfunction in the VVEL (Variable Valve Event and Lift) Control Module, which manages the variable valve timing and lift system for optimal engine performance.

2. What are the common symptoms of code P1607 in an Infiniti?

Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, difficulty starting the engine, and the Check Engine Light being illuminated.

3. What causes the P1607 code in an Infiniti?

The code can be caused by a faulty VVEL Control Module, damaged wiring or connectors in the VVEL system, low battery voltage, or a problem with the ECM (Engine Control Module).

4. Can I drive my Infiniti with a P1607 code?

While the vehicle may still be drivable, it’s not recommended due to potential engine performance issues and the risk of further damage to the VVEL system.

5. How is the P1607 code diagnosed in an Infiniti?

A mechanic will use a scan tool to read the code, inspect the VVEL module and wiring for damage or corrosion, check the battery voltage, and possibly perform advanced tests on the VVEL Control Module and ECM.

6. How do you fix the P1607 code on an Infiniti?

Repairs may involve replacing the VVEL Control Module, repairing damaged wiring or connectors, updating the ECM software, or addressing battery voltage issues.

7. Does the P1607 code always mean the VVEL Control Module is faulty?

No, the code can also be triggered by issues such as a poor electrical connection, software glitches, or other related components.

8. How much does it cost to repair the P1607 code in an Infiniti?

Repair costs can vary widely, but replacing the VVEL Control Module may cost between $1,000 and $2,500, depending on parts and labor rates.

9. Can a weak battery cause the P1607 code in an Infiniti?

Yes, a weak or low-voltage battery can cause communication issues with the VVEL Control Module, potentially triggering the P1607 code.

10. Is it necessary to reprogram the ECM after fixing the P1607 code?

In some cases, reprogramming or updating the ECM software may be required to ensure proper communication with the VVEL Control Module after repairs.

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