My key is pretty busted up too. Did 1991 ls400s have the computer chips in them? if they do how can i tell? I really need a key and they are about 20 bucks on ebay for 2.

 

Radio shack

 

yah, it's $188 for one key, and then $130 for the programing. So a total of $318 for just one key..They said $277 for two keys, and $321 for three keys.

 

Dang, i was hoping it didnt have a chip in it. i might just buy the non chipped keys then hide the chip someone in the car so i wont have to spend all that money. i dont think anyone would wanna steal a stock 91 ls400.

 

I think you can get one of the Ebay keys, or some other website for cheaper, and reprogram it yourself. Pretty sure it only takes a few minutes. Something with the computor in the trunk, you can search for it. It's been done 100s of times.

 

I hope so, cause I want to replace mine.

 

There is NO transponder in the key on the 90-94 LS. I didn't have to have my new keys programmed. The only thing that would have to be programmed would be the keyless entry if you ordered a factory master key w/remote.

 

Thanks! Just the answer i was looking for. I'm going to go get some keys off ebay.