Name that port...plz
 

It's on a S5 JDM 13B
http://a2.sphotos.ak.fbcdn.net/hphot...89271517_n.jpg

I'm putting the final touches on my engine and I can't figure out what this port is for. I cant' find it in the FSM and the port is not tapped on an old N/A engine.

Knock sensor?

Knock sensor bung only used on S4 engines.
Knock sensor moved to rotor housing - above rear trailing spark plug? - on S5 engines.


-Ted

I believe your correct on the the S5 Ted