Complete KTuner ECU Solution for 2002-2004 RSX Automatic & Compatible K-Swaps

Need a complete KTuner ECU solution for your 2002-2004 Acura RSX Automatic or a K-Swap using the correct RSX engine harness and ECU configuration?

This package gives you a fully assembled, professionally installed, tested, and ready-to-use KTuner-equipped PND ECU without having to source an ECU, install the KTuner board yourself, or send multiple parts to different companies.

You receive a complete ECU package that is ready for registration, basemap setup, startup verification, and tuning.

Supported Applications

This ECU package is designed for:

2002-2004 Acura RSX Base Automatic

• Automatic Transmission

• Compatible 2002-2004 RSX engine harness

• Supported K-Series engine combinations

It can also be used in compatible K-Swap vehicles using the correct 2002-2004 RSX ECU and engine harness architecture.

Supported engine combinations can include:

• K20A

• K20A2

• K20A3

• K24A2

• K24A4

• Other compatible K20 / K24 combinations

If your swap uses a different engine harness or ECU configuration, contact us before purchasing.

Retains Factory Functionality

When used in the correct application, this ECU package is designed to retain the factory functions associated with the supported RSX automatic ECU system.

That makes it a strong choice for customers who want KTuner control without giving up the factory Honda/Acura ECU architecture.

Complete KTuner System Installed & Tested

This is not just a loose ECU and tuning board.

The KTuner End User system is:

• Professionally Installed

• Tested for ECU Communication

• Verified Before Shipping

• Ready for KTuner Registration

• Ready for Basemap Setup

You do not need to perform the KTuner board installation yourself.

What’s Included

Your package includes:

• KTuner-Ready 2002-2004 Acura RSX PND ECU

• KTuner End User Board System

• KTuner Hardware Fully Installed in the ECU

• ECU Communication Testing

• USB Cable

• KTuner Software Access

• Basemap Assistance

• Kugan Tuning Startup Support

Everything is assembled and tested before the ECU leaves our facility.

KTuner Gives You Full Calibration Control

KTuner gives you direct access to the factory ECU through your Windows laptop.

Available features include:

• Real-Time Datalogging

• Fuel Tuning

• Ignition Timing Tuning

• VTC Tuning

• Knock Control Calibration

• Adjustable Rev Limiter

• Adjustable 2-Step Launch Control

• VTEC Engagement Control

• Closed-Loop / Open-Loop Control

• Sensor Configuration

• OBD2 Monitor Configuration

• Immobilizer Control

• 4-Bar MAP Sensor Support

• Additional Supported ECU Parameters

This gives you the flexibility needed for anything from a stock K-Series engine to a serious performance build.

Naturally Aspirated or Boosted

This ECU package can support naturally aspirated and forced-induction K-Series combinations.

Naturally Aspirated Builds

Ideal for setups such as:

• Stock K20 / K24

• K24A2 Swap

• K20/K24 Hybrid

• Intake

• Header

• Exhaust

• Intake Manifold Upgrades

• Larger Throttle Body

• Camshafts

• Full Bolt-On Builds

Turbo / Supercharged Builds

KTuner supports compatible 4-bar MAP sensors, making this ECU suitable for properly configured boosted applications.

This can include:

• Turbo K-Series

• Supercharged K-Series

• Higher Boost Levels

• Larger Injectors

• Upgraded Fuel Systems

• Flex Fuel Configurations

• Other Performance Modifications

A proper custom calibration is required for modified and boosted combinations.

4-Bar MAP Sensor Support

Planning to add boost?

KTuner supports compatible 4-bar MAP sensors, giving the ECU the ability to measure substantially more manifold pressure than the factory MAP sensor.

This is especially useful for:

• Turbo Builds

• Supercharged Builds

• High-Boost Applications

The correct MAP sensor calibration must be selected in KTuner before operating the engine under boost.

VTC Tuning

KTuner gives your tuner control over Honda’s VTC system.

Proper VTC calibration can help improve:

• Low-End Torque

• Mid-Range Torque

• Turbo Spool

• High-RPM Power

• Overall Engine Response

This is especially valuable on modified K20 and K24 combinations.

VTEC Control

VTEC engagement can be adjusted to match the needs of your engine setup.

Instead of relying on a fixed factory crossover point, your tuner can optimize engagement based on:

• Engine Displacement

• Intake Manifold

• Camshafts

• Header

• Boost Setup

• Other Modifications

Real-Time Datalogging

KTuner provides detailed datalogging so you and your tuner can monitor what the engine is actually doing.

Depending on your setup, datalogs can be used to review:

• Air/Fuel Ratio

• Ignition Timing

• Knock

• VTC

• VTEC

• RPM

• Throttle Position

• MAP / Boost

• Coolant Temperature

• Fuel Trims

• Sensor Data

• Other ECU Parameters

Datalogging is extremely important for proper setup, diagnostics, and custom tuning.

Immobilizer Control

KTuner allows immobilizer functionality to be disabled in supported applications.

This can be useful for:

• K-Swaps

• Race Cars

• Engine Conversions

• Vehicles where the original matching immobilizer system is no longer present

This helps simplify ECU installation in compatible swap vehicles.

Optional Bluetooth

The KTuner Rev1 End User board supports the optional:

KTuner Bluetooth Add-On Module

Bluetooth hardware is sold separately unless specifically selected with your order.

What You Need

To use this ECU package, you will need:

• Compatible 2002-2004 RSX Engine Harness

• Supported K-Series Engine

• Windows Laptop

• Internet Connection

• KTuner Software

• Properly Wired Vehicle

An internet connection is required during the initial KTuner registration process.

How Setup Works

Step 1 — Install the ECU

Install the KTuner-equipped ECU into your compatible RSX or K-Swap.

Step 2 — Connect Your Laptop

Connect the supplied USB cable between the ECU and your Windows laptop.

Step 3 — Register KTuner

The first time you connect, you will need an internet connection to register the KTuner system and create your account.

Step 4 — Load the Correct Basemap

Load an appropriate starting calibration for your engine and modifications.

Step 5 — Verify Sensors & Startup

Before driving the vehicle, verify critical data such as:

• Coolant Temperature

• Intake Air Temperature

• MAP Sensor

• Throttle Position

• Air/Fuel Ratio

• Injector Configuration

• VTC

• Other Important Sensors

Step 6 — Tune the Vehicle

Once the vehicle is running correctly, the ECU should be professionally tuned for your exact combination.

FREE Basemap & Startup Support Included

When you purchase your KTuner ECU package from Kugan Tuning, we include startup support to help get the system configured properly.

We can assist with:

• KTuner Software Setup

• ECU Connection

• Initial Registration

• Basemap Selection

• Basemap Loading

• Injector Configuration

• MAP Sensor Setup

• VTC Setup

• VTEC Configuration

• Startup Verification

• Sensor Verification

• Initial Datalog Review

• Basic Troubleshooting

This helps reduce setup mistakes and gets you to the tuning stage faster.

Important: Custom Tuning Is Separate

The included basemap and startup support are designed to help get the vehicle running and establish a proper starting point.

A complete custom remote tune or dyno tune is not included unless purchased separately.

For best performance and engine safety, we recommend professional tuning for your exact:

• Engine

• Injectors

• Fuel

• Intake

• Header

• Camshafts

• Turbo / Supercharger

• Boost Level

• MAP Sensor

• Other Modifications

Remote tuning and dyno tuning services are available separately.

Important K-Swap Compatibility Notice

This ECU package is designed around the 2002-2004 Acura RSX automatic ECU and engine harness architecture.

Your swap must be wired correctly for this system.

Problems caused by:

• Incorrect Conversion Harness Wiring

• Damaged Engine Harnesses

• Poor Grounds

• Incorrect ECU Power Wiring

• Incorrect Sensor Wiring

• Non-Compatible Engine Harnesses

• Faulty Aftermarket Swap Harnesses

are outside the ECU itself and may require additional diagnostic work.

If you are unsure whether your swap is compatible, contact us before purchasing.

A Complete KTuner ECU Without the Hassle

Instead of:

Buying a used ECU.

Finding someone to modify it.

Buying KTuner separately.

Installing the board.

Testing communication.

Trying to find the correct basemap.

And troubleshooting everything yourself.

You get a complete system from Kugan Tuning:

• KTuner-Ready ECU

• KTuner End User Hardware

• Professional Installation

• ECU Testing

• USB Cable

• KTuner Software

• Basemap Assistance

• Startup Support

Order Your 2002-2004 Acura RSX Automatic KTuner ECU Package Today.

Install it, connect your laptop, load your basemap, and get your K-Series build ready for tuning.