This apparently comes off my dad's 93 4-runner. He said it's mounted onto the EGR Valve someplace. I'm thinking it's some sort of temperture sensor? EGR Temperature Sensor???
We had a code of 71 pop up a while ago and he replaced the EGR Valve and Modulator but supposedly, this is the culprit of the code.
Here's that thread.
https://forum.ih8mud.com/79-95-toyota-truck-tech/213947-93-4-runner-cel-code-71-a.html
Anyway, here's the picture...

We had a code of 71 pop up a while ago and he replaced the EGR Valve and Modulator but supposedly, this is the culprit of the code.
Here's that thread.
https://forum.ih8mud.com/79-95-toyota-truck-tech/213947-93-4-runner-cel-code-71-a.html
Anyway, here's the picture...