My engine's been out of the car (blob WRX) for a long time, and I've recently dropped it back in and wired it up.

However, there's one vacuum connector I have no idea where it is supposed to go. I can't seem to find a corresponding connector anywhere.

It's basically the one way valve under the throttle body, as pictured below:




Any ideas?

 

PCV valve boss should be a pipe that goes to it from the crankcase.

 

Aha, many thanks. This being the boss next to the turbo (on the block) I assume?

 

That's right it also should have a glorified T piece which goes to the inlet pipework between turbo and MAF.

 

Sorry, done some more research, ignore me

Thanks for the pointers, it was having me stumped yesterday in the garage