blox 74mm tb question/ problem


lewis.25

ek9 turbo
Joined
Feb 18, 2014
Messages
88
Ive just taken my inlet mani off and have noticed a threaded hole in the tb which isnt blocked off.

What is this for and does it need blocking off?

Heres a pic, its next to the map sensor.



thanks
 
from other blox TB's there is a right angle nipple piece on there for a vacuum line i assume
 
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