Toyota / Lexus Denso ECU Tuning

Edit ECU Calibrations Like a Pro

A modern web-based ECU editor for Toyota and Lexus vehicles. Edit maps, manage DTCs, and tune your V8 engine's performance with XDF definition file support.

ECU Editor Interface
XDF
Support
V8
Engines

Professional Tuning Tools

Everything you need to edit ECU firmware, from basic map adjustments to advanced hex-level modifications with XDF definition support.

Map Editor

Edit ECU calibration maps with 2D visualization and thermal gradient display for spark, fuel, VVT and more

XDF Support

Load TunerPro XDF definition files for accurate map locations and scaling on any supported ECU

DTC Management

View, edit, and disable Diagnostic Trouble Codes with full search and filtering capabilities

Hex Editor

Direct binary editing with search, go-to address, and multiple data format support

Checksum Tools

Calculate Sum8, Sum16, Sum32, CRC16, CRC32 checksums for verification and correction

Tuning Maps

Pre-configured maps for ignition timing, fuel injection, VVT-i, torque limiters, and speed limiters

Supported Vehicles

Optimized for Toyota and Lexus V8 vehicles with Denso ECUs. Load XDF definition files for accurate map locations.

Lexus LS460

1UR-FE 4.6L V8

Lexus LS430

3UZ-FE 4.3L V8

Lexus GS460

1UR-FSE 4.6L V8

Lexus GS430

3UZ-FE 4.3L V8

Lexus GX460

1UR-FE 4.6L V8

Toyota Land Cruiser

1UR-FE / 2UZ-FE

Toyota Crown Majesta

3UZ-FE 4.3L V8

Toyota Tundra

2UZ-FE 4.7L V8

Supported ECU Types

Compatible with Denso NEC microcontrollers commonly found in Toyota and Lexus vehicles, plus Bosch ECUs for broader compatibility.

Denso NEC 76F0038
Denso NEC 76F0039
Denso NEC 76F0040
Denso NEC 76F0070
Denso NEC 76F0085
Denso R7F701202
Bosch EDC17
Bosch MED17
ECU Circuit Board

How It Works

Simple workflow to edit your ECU calibrations with XDF definition support.

1

Load Binary

Open your ECU binary file (.bin) read from your vehicle

2

Load XDF

Import XDF definition file for accurate map locations

3

Edit Maps

Modify spark, fuel, VVT, limiters and other calibrations

4

Export

Save modified binary and flash back to your ECU

Ready to Start Tuning?

Open the editor and start working with your ECU files. No installation required - works directly in your browser.