Alright, heres the story, I have an 03' Mazda 6 and the engine blew on me. It's a long story, but basically the computer failed(I think) and the engine self destructed. 2 Piston rods exited the engine, and distroyed everything. It had only 50,000 on the odometer! So, I got an 05' Mazda 6 motor ( 2.3 liter) and dropped it in! I was told that it was exactly the same. Well, after the install, the engine would not crank. I took it to mazda and they told me it was throwing out crankshaft codes. So I figured out that they used a different cam in the 05' but other than that everything else is the same. So, I ordered an 05' computer and it has one solid plug as opposed to 4 on the 03' computer. So I'm hopping that they sent me a computer for a V-6 insted of a 4cyl. So, if anyone has an 05' Mazda 6 with the 2.3 liter, I would GREATLY APPRICIATE some pics of the plug on the computer, or some help if anyone has had this problem. Thanks very much - Luke