So I just got this jeep from my neighbor it was over heating and I put a new water pump thermostat belt and battery on this jeep he took it today to get it smoged so we can do the transfer of title he said bc I put a new battery in that the jeep needs to go about 60 mph so the computer registers the cats as working I took the jeep to 80 mph when I test drove it to see if it was over heating still does anybody have experience with this do I need to take the car to 60 for a minute or so any help is much appreciated