Thanks for the reply; I'm glad you understood my language errors, lol.
Also should've specified they're both 2.4L (LD9), but it seems there are other issues as well... from Wikipedia: "This engine received a minor update halfway through the 1999 model year that eliminated the EGR, increased the compression ratio from 9.5:1 to 9.7:1, and switched from low impedance fuel injectors to high impedance." So it looks like I'm SOL.