Im replacing the thermostat and sensors, I cant figure out what one sensor is. I cant find a replacement that looks similar or has the right thread size. Also, How I do remove the Temp sending unit, do you just push it out from the inside?

Figured it out in my build post, but it doesnt look like I can delete my own post. Maybe someone will find this post in google in the future

The engine is not original to the car, its from a 280zx. I managed to find the sensor by looking up '280zx injector cooling fan sensor' and the first result was a part from zcardepot which looks just like it. So it sound like I can just ignore it

There are quite a few subtle differences between the two.

You can delete topics within 24 hours I think? Look for the 3 dots, upper right hand corner and then click HIDE or DELETE not sure which one.