ecu obdI obdII

[kouki2g0]

so i have a 95 5 speed ecu im not sure if its obdI or obdII. i have a 97 240 and someone told me that i needed a 97 ecu so that my car would past smog or something like that. i know that i need an obdII ecu for my car but i was wondering if it has to be the same year to past smog or can i just get any year ecu that is obdII. also is does anyone one know how i can find out if its obdI or obdII. the 95 240 change from obdI to obdII in the middle of the year right?

[Matt_240]

if i were you id just unplug your battery (wait a little while) and then try and plug it in. if its an obdI ecu, it should throw a code or something and a check engine light should come on or something. if its an obdII ecu, nothing should happen. btw... you can use any year ecu so long as its obdII.

[Red]

There are other Forums open right NOW talking about the OBDI & II issue...

If you compair the 96 book with the 95 book you will notice

The 95 has a 1 wire O2...

The 96-97-98 have 3 wire O2's... And they are all OBDII

Also I guess check your immisions sticker under the hood it should say... (I cant confirm this untill I go home to look at my 95)