I am toying with the idea of replacing the engine and transmission (CVT) assembly in my 03 with a low mileage JDM one. Are there any differences between the JDM and NA Insight CVT engine and transmissions? I know that the JDMs have lean burn, but I just want the engine to run, I don't need lean burn. Also, are there any differences between model years (from 2001 to 2005) that I should be aware of? Thanks.