ok, just to clear up some confusion...which one goes where, and looks like what?

I know one is a little nipple, 12mm head one that goes on passengers side of head under dizzy...
the other is like 24mm shorter, stubby one that goes on back of the block....

which one is whic? i broke the little nipple one and need a new one....thanks

 

the one with the nimple is the oil pressure sensor, that's the one that goes behind the block

 

ohh..the smaller one thats about the size of a toothpick must be the vtec oil pressure sender then huh...? i just need to know which one to get to replace it with....