Yes, OBD2 beyound a doubt. I've know that now. I found the port and the part mumber for the ecu. However, the enginr going in is OBD1 from a 94 sidekick. So I have change the the pan, and oil pump at the least.If you search through the parts catalog, you’ll find that the 96 Suzuki Sidekick uses the same distributor part number as the X90 - 33100-70E00.
I think that you need to stop thinking that your X90 is OBD1. It isn’t. X90’s were only built from 96-98, AFAIK, and they are all OBD2.
To clarify my latest question: will a distributor from a OBD1 (the 94 replacement which was from an automatic if that matters) function correctly with the rest of my OBD2 electronics
By the way my current understanding is that it is real simple to tell the difference. Crankshaft Position Sensor: OBD2. No Crankshaft Position Sensor OBD1. I believe the reason for adding the CPS had to do the switch to OBD2.
That said I do have 2 good ECUs for a 94 sidekick (16 valve). One is for a manual the other for an automatic transmission. I also have the engine wire and the harness back to the ECU for the same. If a member is in need of either let me know as they are useless to me. I understand they are hard to come by especially the automatic but so are sidekicks equipped with automatic transmissions.
Right now my mission is to clean, clean, clean the filthy x-90 engine and parts that will be reused. This thing must have been leaking oil for at least 20 years. Oil pan bolts where so rusted that 7 or 8 of them had to by removed with a cold chisel.
Wish me good fortune and I'll be back with updates and requests for more knowledge...