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P100A 2011 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 2011 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 3,763

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 2011 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 2011 Infiniti G37_sedan - VVEL Response Malfunction Bank 1 - AutoCodes.com — P100A 2011 Infiniti G37_sedan Code - VVEL Response Malfunction Bank 1

What does this mean?

What are the Possible Causes of the DTC P100A 2011 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 2011 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 2011 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 2011 Infiniti G37_sedan Code

1. What are the common symptoms of OBDII code P100A on a 2011 Infiniti G37 sedan?

Symptoms may include engine performance issues, rough idling, reduced power, and potential stalling.

2. What does the OBDII code P100A "VVEL Response Malfunction Bank 1" indicate in a 2011 Infiniti G37 sedan?

This code points to a malfunction related to the Variable Valve Event and Lift (VVEL) system in Bank 1 of the engine.

3. What are the possible causes of the VVEL Response Malfunction Bank 1 code on a 2011 Infiniti G37 sedan?

Causes can include a faulty VVEL actuator, wiring issues, sensor problems, or a malfunctioning VVEL control module.

4. How serious is the P100A code on a 2011 Infiniti G37 sedan?

While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential engine damage or further performance issues.

5. Can I continue driving my 2011 Infiniti G37 sedan with the P100A code present?

It is not advisable to drive the vehicle extensively with this code active, as it can lead to poor engine performance and potential long-term damage if left unresolved.

6. How can I diagnose the VVEL Response Malfunction on Bank 1 in my Infiniti G37 sedan?

Diagnosis usually involves using an OBDII scanner to retrieve the code, followed by inspecting the VVEL components, wiring, and related systems for faults.

7. What are some repair tips for fixing the P100A code on a 2011 Infiniti G37 sedan?

Repair tips may include checking and repairing any damaged wiring, replacing the VVEL actuator or sensors, and ensuring proper connection of components.

8. Can resetting the OBDII code P100A on a 2011 Infiniti G37 sedan make it go away permanently?

Resetting the code without addressing the underlying issue is not a permanent solution. It is essential to diagnose and fix the root cause to prevent the code from reoccurring.

9. Should I take my 2011 Infiniti G37 sedan to a mechanic for the P100A code repair?

Due to the complexity of the VVEL system, it is recommended to have a qualified mechanic diagnose and repair the VVEL Response Malfunction Bank 1 code to ensure proper resolution.

10. How much does it typically cost to repair the P100A code on a 2011 Infiniti G37 sedan?

The cost of repair can vary depending on the exact cause of the issue, but it may involve parts replacement, labor costs, and diagnostic fees, which can add up to a few hundred dollars.