Mazda MX-6 Forum banner
1 - 3 of 3 Posts

·
Registered
Joined
·
2,228 Posts
Discussion Starter · #1 ·
got 2 laying around, and don't know what there from. Is there any way of telling what they are?

I think both are pre-90's, but i'm not sure.
One may be an auto, and one may be a 4ws 5 speed. Any help would be great

Main concern is that there not a 90+
Thanks
 

·
Registered
Joined
·
2,419 Posts
Well, I happen to have my old 89 ATX ECU laying infront of me. First off, im pretty sure the 4ws uses a seperate computer, not the ECU. There isn't a difference in the ATX vs MTX ECU's that I can tell. I converted to 5spd and tried both ECU's; They both work on the car. Not sure if the fuel maps are different or not..I doubt it. So, basicly any 88-89 ECU will work on the 88-89 and any 90-92 will work on the 90-92's. Okay, now...I don't know if this helps or not, but on the sticker on the top cover, it says, "Production NO. 1814". I can't seem to remove the covers because the screws are stripped : | So, I hope this helps.
 
1 - 3 of 3 Posts
Top