I have an 88 T2 and I need a vacuum line diagram but the problem is that the previous owner took off all the emission control parts such as the ACV Valve and the rigid lines that I presume go underneath the intake manifold. The rigid lines have 4 electrical connectors on them and I'm not sure if they were supposed to come off with the rest of the emissions control parts. My Roxy currently doesn't run and I want to get this sorted out before I try to start it up to avoid complications later. My main question is if I need to reinstall the rigid lines so I can reconnect the 4 electrical connectors and I need a diagram for the vacuum lines with those parts taken out if I don't need to put them back in.

 

Search emissions removal, it will be there. You have to decide whether you are keeping any of the idle control stuff, which is the fast idle system in the throttlebody and the BAC valve on the side of the UIM. They don't really have any vacuum lines but they affect driveability.

 

Cool thanks!

 

I'm not sure where you're starting and what's been disconnected etc, but if you get rid of the rats nest and all your emissions, this is a great diagram to follow. It works perfectly for my car:

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/double-rats-nest-removal-twin-scroll-addition-913213/

And our S4's don't have a secondary air injector bleed. I was confused on that for a bit.