Is there a difference between the 4 cylinder and 6 cylinder ISC motors?
I'd have thought they were generic as they adjust. I got told they are different.

Any answers will be awesome, thanks guys!

As far as I know the second gen 6 cylinder ISCs are the same as the third gen one. Other 4 cylinder Mitsus like the Lancer have a different one though so I'm guessing the 4 cylinder one on the second gen may be different. You would need to compare them physically side by side. According to the manual they are the same, if I remember correctly.

(In short, I don't really know for sure. lol)

Other thoughts?

No worries, thanks mate. :)