Identify connectors please

[Pedro]

I unplugged my coolant temp sensor, head temp sensor and my oil pressure sensor. Now i plugged them all back in but im not confident that they are correct. Someone identify them for me.

1 connector has two prongs
1 connector has one prong and is grayish color
1 connector has one prong but is black

If you need a pic ill take one tomorrow its to dark tonight to do it.

Thanks.