4L80E Transmission Control Unit


MicroSquirt Trans control for 4L80E Transmissions

The MicroSquirt transmission control system gives laptop tunable electronic control over shift points, converter lockup and line pressure for GM 4L80E transmission.

This product is configured for MegaSquirt products with CAN capability such as the MicroSquirt and MS3 Gold box. The unit comes loaded with the proper firmware and a base startup program for the 4L80 transmission. Additional tuning may be required for your application.  The CAN network is required for sensor sharing between the Engine and Transmission controllers.

***Functionality is guaranteed when using this TCU in conjunction with a compatible MegaSquirt ECU linked via CANBus. APPLICATIONS OTHER THAN THE ABOVE ARE AT THE END USERS DISCRETION AND NOT GUARANTEED***

Additional information is available at:



MegaSquirt® and MicroSquirt® controllers are experimental devices intended for educational purposes. MegaSquirt® and MicroSquirt® controllers are not for sale or use on pollution controlled vehicles <http://www.megamanual.com/tamp.htm>. Check the laws that apply in your locality to determine if using a MegaSquirt® or MicroSquirt® controller is legal for your application.

MicroSquirt® is a registered trademark of BG Soflex LLC

Additional information

Weight4 lbs
Dimensions8 × 8 × 6 in