I bought a 1990 Ford Mustang GT 5.0 M/T recent owner put a computer in it that was not right at all. Car would run so rich, and miss badly. He gave me another computer a E9ZF-12A650-A2A (A9L) car ran perfect but the CEL was on. Computer has bad circuits due to water damage. I cannot find another computer for my car. A1 Cardone is out of stock on reman computers. Which computers would fit my car and make it run right? I pulled up some Computers that may work. A9L, A3M, A3M1, S0Z, D3D, D3D1. Also does someone have one that is good that i can purchase. Thanks for any help!!