Apparently the computer on my 1997 Wrangler Sport 4.0L is fried. I am geeting conflicting information. The mechanic that has it says you cannot get a pre-programmed replacement computer. You have to send it off (2 wk turn aound), then he has to re-program the new one once it is here. I have another mechanic friend that was able to find a pro-programmed one to work with. He says because of the age we should be able to purchase a replacement one, on some of the newer models they have to have the data transferred. Not sure which is correct.