I have a 2001 windstar. I had to replace the computer because the old one was not completing a ground for cylinders 2 and 6 ignition. Now my keys are not recognized by the antitheft system. Any suggestions?

 

Keys are code by a chip. You will most likely have to go to a dealer and have the key codes cleared in the computer and new codes installed on your keys posible new keys all together. If you can get the keys for the van that the computer came from and re-cut them you could program them yourself but you need 2 coded keys at a minimum.