Thank you for the help guys! I now understand that it must be before the throttle plate and after the maf.
Is this the same as drilling a port on the bottom on my throttle body and connecting to there instead?
Say I fix my plugged front pcv later on sometime and leave this line hooked up. Are there any ill effects?
I am lq4 maf. Stock maf is just there cut in half to seal the hole up (bought like this)