Ok so here is the reason i dont know where that is. I have a diypnp and an mtx-l wideband. Was learning to tune and planning to turbo. Something came up and finances just aren't working out. So im going back to stock and sellin that stuff
But for the life of me i just can't find the spot on the wiring harness to reinstall the oem o2 . Can you tell me where to find it? A pic would be nice but not necessary. It is a 1990 1.6 Thank you

 

its on the injector harness.

 

sweet thank you