COMPUSHIFT Mini for GM 700-R4 and GM 200-4R The COMPUSHIFT Mini is a standalone plug-and-play system designed to control the torque converter clutch on GM 700R4 and GM 2004R transmissions. The system uses a miniaturized version of the same control software and electronics as the COMPUSHIFT II. The built-in display and keypad lets the user adjust and tune for their specific application and diagnose problems should they occur. The easy to read screen can display current vehicle speed, throttle position, transmission pressure, 4th gear/overdrive activity, torque converter clutch engagement, and allow for further custom tuning. The controller can can drive an electronic speedometer as well. Unlike other control modules that use vacuum switches or a simple delay timer, the COMPUSHIFT Mini uses throttle position and vehicle speed to optimize torque converter clutch control. Installing the COMPUSHIFT Mini is a straightforward operation if you are familiar with working on cars. No special considerations are needed when driving with the COMPUSHIFT Mini. Once tuning is complete, the COMPUSHIFT Mini can be mounted in its final location and left alone. No further adjustment or maintenance is needed. Properly tuned, your vehicle should have better gas mileage during cruising, and be more responsive to the throttle. The kit ships with all of the parts that should be needed for the installation including COMPUSHIFT Mini Controller with keypad, wiring harness, speed sensor and fittings, hydraulic pressure sensor, hook and loop fasteners, terminals and cable ties. Supported Transmissions
Note: During the years that GM built these transmissions, a number of different combinations of internal switches and wiring looms were fitted. The transmission must have a proper internal wiring harness. It must use a 4th gear pressure switch that is normally open and switches to ground when 4th gear is engaged. If you are unsure if your transmission is equipped with the proper solenoid and pressure switch please add on the components with the option button above.