I'm new to the site but this is my third toyota. This truck is an 84 frame/ 88 xtra cab/ 90 22re. I bought the truck from a kid who jimmy-rigged everything he touched.
The problem at hand is the O2 sensor. He removed the sensor and cut the wires. I can't find any chopped wires anywhere that would be the remains of the sensor and I obviously need to wire in a new one.
Does anybody know where the O2 wires are routed and/or where I can start tracing them from/specific colors/ etc.?

..and a pic for fun!

 

Nice pix, Pretty cool setup so far. Welcome to YT! Umm besideds that the wires... Truck is sitting in the dark or elce I would go take a peek... If I remember in the morning and still not answerd ill go check it out. I know this is a newb questoin but what all would the o2 senser affect cuss im sure mine is out but never botherd to change it. Better bang and fuel efficentcy I would assume?

 

Thanks! Yeah anything would be helpful! But the 02 sensor, don't quote me, helps to even out air-fuel ratio and basically help maximize performance/emissions/efficiency. Sadly I've ran the truck as is w/ no sensor for about a year but am installing a new to me header and exhaust and might as well do things right. I spend a lot of miles on the freeway and would love a couple extra mpg!

 

A Factory Service Manual wiring diagram or see below:
- http://www.4crawler.com/4x4/4R_TechI...tml#Electrical