It may take more than 3 miles. And you should drive it under a variety of conditions. Stop & go driving, freeway, etc. Drive it as your daily driver for a couple of days. If "relearning" is the culprit, that should do it. Also, check for loose wiring to the computer box.

1977 CJ-7, fiberglass body, AMC 360 w/ headers, DUI ignition, Edelbrock intake and Holley 4150 carb, TF999, Dana 300, 4.56 gears lockers, York air comp, 4" susp lift, 2" body lift, BFG 35" M-T tires, Megashifter, AGR pump & box, REP8000 winch.