If you were swapping motors to the newer one it has to be from a 1997 only, 1998 up have a returnless fuel system. You don't need to take anything else when you pull the SPI motor. Just remove the 1.9, find a 1997 2.0, install the 2.0. Buy an msd rpm activated switch, set it for 3500rpm and plug it into the secondary intake manifold solenoid. Everything else is plug and play