anybody tell me what this is?

[ice_s13]

anybody knows what this is. prolly a stupid question but i dont have the slightest

[fikemoo]

knock sensor

[cleanhands]

Goes here;

Behind black pipe

[ice_s13]

would never of thought that be a knock sensor. im still in VG30DETT mode. well i´m just getting to know the CA

[cleanhands]

The "brass" pipe to the left of it that turns a right angle upwards is the breather that you'll soon read about as the cause of many a CA death. As you can imagine you need extremely skinny arms with 4 elbows to get to it while the engine's in the car.

[Mclean]

I'm sure that's an oil pressure switch

[ANDY black s13]

I'm sure that's an oil pressure switch

He is white not green and a square shaped end with a spade terminal

[pointz]

He is white not green and a square shaped end with a spade terminal

And at the bottom of the block just above the sump its 110% knock sensor