Transmission Controller GM EZ-TCU

The Transmission Controller GM EZ-TCU from TCI is a standalone electronic control module designed specifically for GM automatic transmissions. This product is ideal for automotive builders and enthusiasts who require precise control over shift timing, pressure, and torque converter lockup, especially in applications like street machines, drag racing, or engine swaps.

Engineered for flexibility, the EZ-TCU utilizes closed-loop feedback from OEM sensors such as vehicle speed, throttle position, and transmission temperature. This allows for real-time modulation of hydraulic pressure and shift scheduling, enabling independent tuning of upshift and downshift points, line pressure curves, and converter clutch engagement. The self-contained design simplifies installation by reducing the need for custom harness fabrication in many cases.

This controller is particularly beneficial for LS swaps, crate engine builds, and any project requiring independent electronic control of a factory GM transmission. Its onboard logic compensates for variations in fuel octane, load, and ambient conditions, ensuring consistent performance whether cruising or racing.