For computer controlled transmissions, nothing beats the TCI EZ-TCU Transmission Controller. The EZ-TCU allows for maximum electronic control over shift points, shift firmness and shift speed. No software, laptop or tuning experience is required, and power data logging and self diagnostics allow users of every skill level to fully utilize the unit. Simply install it according to the enclosed instructions, and then start the system by answering the simple Setup Wizard questions on the included hand-held unit. It s that easy; the EZ-TCU does all the work for you! The EZ-TCU is fully configured and ready to run right out of the box no tuning necessary. But for those who demand customization, the unit is also optionally fully programmable based on load, speed and RPM. The EZ-TCU programming interface is completely intuitive. There is no real expertise needed if you want to custom program your calibration. The EZ-TCU is capable of real-time switchable calibrations, which allows for multiple setups. Run one calibration on the way to the track, and then, with the push of a button, have a more aggressive setup ready for the race. The multiple shift modes include full manual mode for using bump switch or paddle shifters.
This TCI Harness provides all the internal wiring for your 1993+ 4L80E.