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P100A 2012 Infiniti G37_sedan Code - VVEL Response Malfunction Bank 1

Quick Answer

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Common causes include Faulty VVEL Actuator Motor, VVEL Actuator Motor harness is open or shorted, VVEL Actuator Motor 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: P100A 2012 Infiniti G37_sedan indicates VVEL Response Malfunction Bank 1.
Common causes: Common causes include Faulty VVEL Actuator Motor, VVEL Actuator Motor harness is open or shorted, VVEL Actuator Motor 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 3,418

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 Aug 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P100A 2012 Infiniti G37_sedan Description

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Rotational movement of the drive shaft equipped with an eccentric cam is transmitted to the output cam via the rocker arm and two kinds of links to depress the intake valve. The Engine Control Module (ECM) decides the target valve lift according to the driving condition and sends the command signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the movement of the output cam by shifting the link supporting point. As a result, valve lift changes continuously to improve engine output and response.

OBDII Code P100A 2012 Infiniti G37_sedan - VVEL Response Malfunction Bank 1 - AutoCodes.com — P100A 2012 Infiniti G37_sedan Code - VVEL Response Malfunction Bank 1

What does this mean?

What are the Possible Causes of the DTC P100A 2012 Infiniti G37_sedan?

Faulty VVEL Actuator Motor
VVEL Actuator Motor harness is open or shorted
VVEL Actuator Motor circuit poor electrical connection
Faulty VVEL actuator sub assembly
Faulty VVEL ladder assembly
Faulty VVEL control module

How to Fix the DTC P100A 2012 Infiniti G37_sedan?

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 P100A 2012 Infiniti G37_sedan 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.

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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 P100A 2012 Infiniti G37_sedan Code

1. What are the common symptoms of OBDII code P100A (VVEL Response Malfunction Bank 1) in a 2012 Infiniti G37 sedan?

- Common symptoms include rough idling, reduced engine performance, and possible stalling of the vehicle.

2. What could be the possible causes of OBDII code P100A in a 2012 Infiniti G37 sedan?

- Possible causes may include a faulty VVEL (Variable Valve Event and Lift) actuator, issues with the VVEL system, or wiring/connectivity problems.

3. How can I diagnose the VVEL Response Malfunction Bank 1 issue in my 2012 Infiniti G37 sedan?

- Diagnosis involves using an OBDII scanner to retrieve the specific trouble code, checking the VVEL actuator for proper function, and inspecting the VVEL system components for any visible damage.

4. Can I continue driving my 2012 Infiniti G37 sedan with the P100A trouble code?

- It is not recommended to continue driving with the P100A code present, as it can lead to further engine damage and potential safety issues. It's best to address the problem promptly.

5. How can I repair the VVEL Response Malfunction Bank 1 issue in my 2012 Infiniti G37 sedan?

- Repair options may include replacing the faulty VVEL actuator, repairing any wiring or connectivity issues, or resetting the ECU (Engine Control Unit) after fixing the underlying problem.

6. Is it possible to reset the OBDII code P100A in a 2012 Infiniti G37 sedan without fixing the issue?

- While you can clear the code temporarily, it will likely reappear if the underlying problem is not addressed. It's important to diagnose and fix the root cause of the code.

7. How much does it typically cost to repair OBDII code P100A in a 2012 Infiniti G37 sedan?

- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can a DIY enthusiast fix the VVEL Response Malfunction Bank 1 problem in a 2012 Infiniti G37 sedan?

- Depending on your skill level and access to tools, you may be able to address simpler issues like checking and cleaning connectors. However, more complex repairs may require professional assistance.

9. Will fixing the VVEL Response Malfunction Bank 1 code improve the overall performance of my 2012 Infiniti G37 sedan?

- Yes, addressing the P100A code can help restore engine performance, improve fuel efficiency, and prevent potential issues down the line.

10. How often does the VVEL Response Malfunction Bank 1 issue occur in 2012 Infiniti G37 sedans?

- While not extremely common, the P100A code can occur in 2012 Infiniti G37 sedans due to various factors such as component wear, electrical faults, or other related issues.