Hey y'all, I'm head deep in a head gasket change on my 1993 pickup 22re and noticed that the housing on one of my sensors is broken. I'm not sure what sensor it is and could really use some help figuring it out. It's the black sensor on the intake manifold with white paint pen on it, underneath where the upper radiator hose connects. Any ideas or suggestions?

 

Cold start injector time switch (CSI)

 

awesome, thank you!