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Hi, my name is ***** ***** do this you will need the wiring harness and the computer from the 1999 2.0, as the 2.5 computer will not run the 2.0 engine, it has totally different fuel maps, and the wiring is different, do you have the harness and computer from the 2.0?
in order to swap to the 2.0, this will need to be done, I would just stick with the engine you have and replace the transmission,Tim
Please do not forget to rate me so I can get credit for helping, thanks,Tim