I hate to post a new thread on this but I can't find anything anywhere, checked search on SF and SM google,tsrm,ma70.com, I need a wiring diagram for the O2 sensor I'm replacing the stock one with a universal and am probably going to need to splice/butt connect the new one as the connector is no good.
Wiring diagram O2 sensor
- Thread starter mk3_supra
- Start date
Lol. I'm looking for the same info, as I'm wiring in a universal today myself. Question is- WHICH is the signal wire. I'll post in here myself if I find it.
---------- Post added at 11:13 AM ---------- Previous post was at 11:11 AM ----------
Looks like CyFi6 answered it in a different post- White wire...
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=48
---------- Post added at 11:13 AM ---------- Previous post was at 11:11 AM ----------
Looks like CyFi6 answered it in a different post- White wire...
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=48
Well, I just finished mine, but my wires didn't exactly match the diagram.
I had red/green, yellow/black, and a double shielded brown wire(88' turbo).
Obviously, the brown wire is the signal wire, as it's shielded from RF, and I verified this by checking continuity to it through the diagnostic terminal.
You can tell it apart from the others, just by it's larger gauge, even if the colors are faded.
HTH.
I had red/green, yellow/black, and a double shielded brown wire(88' turbo).
Obviously, the brown wire is the signal wire, as it's shielded from RF, and I verified this by checking continuity to it through the diagnostic terminal.
You can tell it apart from the others, just by it's larger gauge, even if the colors are faded.
HTH.
supraguy@aol;1636247 said:
Thanks for the diagram/follow up. Did you go with a denso sensor? Took a look at mine this morning they don't match the diagram either I think that might be for 89+ on that site. So brown to signal and the other 2 don't need to be matched?