I'm a bit stumped... again. I'm trying to fix a slight roughness in my German Princess' idle. I mostly just can't find the actual PCV valve. I was digging around under the manifold, playing with that octopus that lives under there like a troll. There was no way that that connection was coming apart without tearing something.
I've got a "PCV valve" i got from the parts girl at my indy , but there is no way it's fitting into the stub coming off that rubber T style fitting that comes off the breather tube. I've found a couple diagrams that show some kind of valve in there, but I must have the wrong one, because it is way too big to ever go in there ..... I think. And I can't get that connection apart. Any pointers? That thing was a real bitch to even get close to... I really don't want to take off the intake manifold.
As far as that rough idle, I'd love some help with that too.
I've done a ton of searching and trouble shooting and I'm pretty sure I haven't got any broken/leaking vac lines, I've replaced the crank case ventilation valve ( is that right?, the "hockey puck" coming off the turbo inlet air hose) but not the check valve beside it, replaced the plugs and the coils, cleaned up the ground lines on the injector harness, checked the air filter and new MAF for cleanliness, cleaned the already spotless throttle body and air intake sensor, cleaned the MAP sensor, re-seated and checked every electrical connector.
There's a couple weird things I've noticed about the PCV system that makes me think this is the culprit: when I first examined the hockey puck thing, it was full of mayonaise and other assorted crud (cleaning didn't make much differance) and then this week, when I took it apart again to install the new one, there was already a couple teaspoons worth of water in it. Where the hell is that coming from?
So, I'm at the point where the PCV and maybe the suction jet pump are my last recourse before I send my injectors in for reconditioning. Except I can't find the damn PCV.....
I guess in need to buy a vac pump testing thing....
edit: 1.8T ATW