Im building a k20 swap del sol and I got a new interior harness and it seems with things like my dash harness that was also new out of another del sol that the new harness has some extra pins. Is there a way I can tell if it's and ob2 harness or is there a difference between the different models ie Si s

 

Also the bottom of the fuse box has one or 2 plugs with more pins than the hanress plugs have

 

Bump

 

Anyone have any idea I have a 93 s so I figured mine would be the base model as far as wiring and stuff also any way I can tell between obd1 and obd2 harness