Introduction

Select Monitor Adapter
Subaru Diagnostic Ports
How to build a PC adapter
Protocol
Software
Troubleshooting
Eavesdropping

Engine Control Unit (ECU)
Description
Reading Error Codes
Reverse Engineering
Modifying
ROM images

Transmission Control Unit (TCU)
Description
Reading Error Codes
Reverse Engineering
Power Mode
Modifying
ROM images

Other Control Units
Air Conditioning Unit
4WS Control Unit
Cruise Control Unit

OBD2 Information
Select Monitor Cartridge

Downloads
Links to other sites

Custom TCU Development



Custom TCU Development

Since cracking the 4EAT TCU back in 2008, I've received many emails from people asking me to modify or customise their TCU. Initially, I started doing this for free, as a favour to friends on various forums. But as the demand has increased, this has become unsustainable.

I have therefore decided to formally offer a paid-for custom TCU development service. If you have a modified transmission, or a standard transmission that you want remapped to work better with your modified engine, I can help. Even special features like paddle-shift, shift lights, or switchable power/economy modes can usually be accomodated.

As I have no desire to compete with companies selling off-the-shelf chips, this is a bespoke service. Each chip will uniquely programmed according to your specification. The price varies according to the complexity of the work.

Email me to discuss your requirements.