First off, I apologize if this has been asked before. I searched but couldn't really find anything. I recently put another motor in my RX7 (S4 N/A) and while the new motor was out I did the rats nest removal. Now, I'm almost finished putting it in but I have two questions:

1. On the LIM, there's a tube coming out of the rearmost runner. I'm not sure what it's for, and although I can see it in some FSM diagrams, it's never actually referenced. I have no camera right now but if I can borrow one I'll take pictures.

2. I feel really stupid for this, but I'm not sure where on the harness the O2 sensor plugs in as I forgot where I unplugged it from. Any help on this would be awesome.

Thanks in advance!

 

maybe the split air pipe that goes to the cat?

 

I should have mentioned that I already have the split air pipe hooked up.

 

brake booster line?

a pic would help. i dont know much about NA's but could probably tell by a pic.

 

harness wire for the O2 is behind the Throttle body..One wire square type connector.

 

The tube is probably the one for the aux port actuators. Get it hooked back up if it is.

 

Yep, turns out it was the brake booster line. Now I really feel stupid.