How do you reset your ECU on a 95 3000GT base?

To reset the ECU on a 1995 Mitsubishi 3000GT Base, disconnect the negative battery terminal and leave it off for about 15-30 minutes. This allows the ECU to clear its memory and reset itself. After the waiting period, reconnect the negative terminal, and start the car to allow the ECU to recalibrate. It's also a good idea to drive the car for a short distance to help it adapt to normal driving conditions.