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I am in the market for a MX 3 GS and want to do the KLZE millenia swap. What year is the easiest to swap or best to swap. I know to stay away from 1996 because of OBD2 (Im not going standalone). Im going car shopping in the next couple days and have a couple of each year set up. Just wondering if one year was better than the other. Thanks for the advice guys.

my car is a 97 , i have OBD2 and i will change to a KLZE ... it isnt that hard ...

92-94 i believe are OBD1 92 & 93 have the nicer seats and the plain dash, 94 has the cool dash but i don't like the plain seats.

What about the 95 and does anyone have any pics of what a 94 dash look like. Is it the same as a 95. The majority of the MX3 that are for sale in my area are 1995. I wanna go with an OBD1 so I can get a probinator chip. Is there any way to tell between OBD1 and OBD2 on a 95 by visually looking and not taking apart the car. thanks for the quick response guys.

The '94+ dashes are the same, the "bubble style". The OBD-II connector has to be accessible without taking any parts off the car. It is located under the passenger side dash, near the center console and the ecu. If you lay on your back on the passenger side floor and look up, you should see it, if there is one.

I went through this quest before!
Check out:
viewtopic.php?f=15&t=61081&hilit=obdii

Basically you want to have 3 connectors on your ECU for it to be obdI, so go have a look at your ECU, there's one quickly removable panel in the way.

CARB - the California Air Resources Board, made OBD-II mandatory for all cars manufacured for the 1996 model year, but Mazda started to produce OBD-II compliant cars in mid 1995. This is contrary to what has been stated by Yoda in that other thread, but my old 95' RS was manufactured in May 95' and it was OBD-II. There are reportedly both OBD-I and II 1995 models.

I have not researched it, but I have given some thought to the issue of swapping an OBD-I ZE into an OBD-II car and I think the only real issue is the wire harness will be slightly different. It seems to me if you could get the appropriate harness and ECU it shoud not be an issue. Going stand alone to overcome this issue seems drastic, unless there's something I am not considering.

what am I missing? I'll search.

I am now the proud owner of a 1992 GS MX-3. Now comes the fun part, engine swap and suspension upgrade.