My mechanic has been working to install a new motor in my 1999 Lexus GS 300. He was sold a 2002 motor by LKQ who advised that all motors from 1998 through 2003 were the same 3.0 and would work. Unfortunately the wiring harness on the 2002 motor does not match the computer on the 1999 vehicle. Does anybody have a wrecked 2002 GS 300 motor with a 3.0 or know where we can acquire a computer for this engine. Please call 206-290-0028 or e-mail firstname.lastname@example.org if you can be of any help. We are located in Sarasota County, Florida.