Complete Guide to the 2020–2024 Nissan Altima Valve Control Computer Module – OEM 237F09HF0B / EVU020-100

Introduction

The Valve Control Computer Module (sometimes referred to as the Valve Timing Control Module or VVT Control Unit) is a crucial electronic component responsible for managing the Variable Valve Timing (VVT) system in your Nissan Altima. A failing unit can cause performance loss, engine hesitation, reduced fuel economy, and check-engine problems.

If you drive a 2020, 2021, 2022, 2023, or 2024 Nissan Altima, the OEM Valve Control Computer Module part numbers 237F09HF0B and EVU020-100 are the exact replacements you need.

This guide helps you understand its function, symptoms, replacement tips, and programming requirements—and ensures you select the correct OEM part.

1. What Is the Nissan Altima Valve Control Computer Module?

The Valve Control Computer Module regulates how the engine valves open and close by controlling the VVT actuators. It ensures optimized:

• Fuel injector timing

• Air–fuel mixture

• Valve lift precision

• Engine efficiency

• Smooth acceleration

• Reduced emissions

This small but advanced module communicates constantly with the ECU for best engine performance.

2. OEM Part Numbers Explained

For the 2020–2024 Nissan Altima, the correct module is:

• 237F09HF0B – Primary Nissan part number

• EVU020-100 – Manufacturer/production code

Both are interchangeable genuine OEM identifiers for the same module.

3. Symptoms of a Failing Valve Control Computer Module

If this module begins to fail, you may experience:

• Check Engine Light

• Rough idling

• Poor acceleration

• Low fuel economy

• Engine hesitation

• Delayed throttle response

• VVT malfunction codes

Common diagnostic trouble codes may include: P0011, P0014, P0021, P0078, P1011 depending on the issue.

4. Do You Need Programming When Replacing the Valve Control Computer Module?

Yes. Programming is required.

The Nissan Altima Valve Control Computer Module must be initialized and programmed to your vehicle using Nissan CONSULT or professional diagnostic software.

Programming ensures:

• Correct valve timing mapping

• Synchronization with the ECM

• Proper VVT operation

• Removal of error codes

• Optimal fuel and performance calibration

Without programming, the VVT system may not function correctly and the engine may misbehave.

5. Why Buy from AutoMan Spare Parts?

AutoManSpareParts.com delivers:

• Genuine OEM Valve Control Computer Modules

• Massive inventory for all Nissan models

• Lowest prices in the USA guaranteed

• Worldwide fast shipping (USA, Mexico, Canada, UAE, Europe, Asia)

• Professional support to confirm compatibility

We are a trusted global supplier for workshops, garages, and Altima owners.

6. Compatibility Table

Nissan Altima Valve Control Computer Module OEM 237F09HF0B / EVU020-100 Compatibility

7. Installation Notes

• Disconnect battery

• Remove old module from bracket

• Install new OEM module

• Reconnect wiring harness

• Program/initialize via Nissan CONSULT

• Clear stored fault codes

• Conduct VVT learning procedure

Professional installation is recommended.

8. TLDR Section

• Module controls the engine’s VVT system

• OEM part numbers: 237F09HF0B / EVU020-100

• Fits 2020–2024 Nissan Altima

• Symptoms: rough idle, loss of power, check-engine light

• Programming is required after installing

• Buy genuine parts affordably at AutoManSpareParts.com with worldwide fast shipping

9. FAQ

Q1: Is 237F09HF0B the same as EVU020-100?

Yes, they refer to the same genuine Nissan Valve Control Computer Module.

Q2: Can I install the module myself?

Yes, but programming must be done by a technician.

Q3: What happens if I do not program it?

The engine may misfire, idle poorly, and produce VVT-related error codes.

Q4: Do you offer global shipping?

Yes, AutoManSpareParts.com ships worldwide with fast delivery.

Q5: Is this part OEM or aftermarket?

This guide covers 100 percent genuine OEM Nissan modules.