O2 Sensor connection wiring diagram needed

Tiny
ERWIN319
  • MEMBER
  • 1992 TOYOTA CELICA
  • 2.2L
  • 4 CYL
  • 2WD
  • MANUAL
  • 5,000,000 MILES
I have the car listed above GT that has had a pretty rough life. I’ve been building it back up for about 6 years now and I’ve finally hit a roadblock. Before I got this car Pack Rats had their way with it and while mostly everything, they destroyed was pretty straight forward they ate the O2 Sensor connector completely off. So now I have no idea where the wires need to come from, and I haven’t found anything online about it either. If anyone has the car listed above with 5S-FE engine in it, please answer with a video tracing your upstream o2 sensor wire back as far as you can go. I want this car to be street legal and need this to pass emissions.
Sunday, July 10th, 2022 AT 1:18 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,837 POSTS
Here is a guide that will help you check the wiring connection and the engine and oxygen sensor wiring diagrams so you can put the car back together in the images below:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Sunday, July 10th, 2022 AT 6:21 PM

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