Sorry to bring back an old thread but can someone elaborate a little bit on this swap? I plan on doing this swap in my '91 SE-R and as far as I know using the stock harness and Avenir ECU will work for a stock setup, I just did a VE and little things like passenger side motor mount on the motor itself needed to be changed, the coolant line pipes that run behind the thermostat needed to be swapped and a few sensors and what not, other than that is this a straight forward swap? I imagine it is since you're swapping a motor into a car that already came with a highport. Are Avenir's OBDII or OBDI? They started building them in '95 so that would indicate OBDII but I heard they weren't