Rough idle/no rev problem

[Gilles]

Originally Posted by tada

Reattached the vent tube (by feel), reassembled everything. Same exact response. Running on 3 cylinders. Got my Durametric today. No codes. I do feel this is air/vacuum related at this point. But to really see the PCV valve, the airbox needs to come out, and to get to the other end, I need to get under that input manifold. So, the excitement has quelled. On to get things done.

Tada, I replaced my tube because it was creating a mess (I knew it was broken somewhere), and being an accordion type, unless you remove it, it could be difficult to inspect it for cracks...

[tada]

I think I found a problem. It may not be a no run problem, but it is an obvious problem. Look at the AOS below. Sometimes I just miss the obvious. That cap on the AOS where the J tube should be was capped off with a carb cleaner cap. Underneath I found duct tape over the opening on the AOS. I found the exact same setup on the throttle body. So, it seems to me the PO tried to plug these off because the AOS has probably failed. So an AOS replacement along with all the breather and vacuum tubes is in order. Can this be the root of my problem?

[tada]

The tape installed by PO: