What is this vacuum connector on the 22re valve cover? It has two vacuum lines, an air filter on one end, and en electrical connector.

I broke one of the plastic nipples trying to get an old vacuum hose off. It broke all the way down at the base, so I can't put the hose back on. Is there a way to repair that, or are these cheap enough that I can just buy another?

This is an '88 truck.

 

PAIR system vacuum switching valve. Not cheap new, if you could even find one. You're better off going to the junk yard. '88-(at least)'93 should work. I had to switch the VSV from my '93 onto my '88 to pass smog test when I owned them so I know they'll interchange. It will probably be a different color though. Red I believe.
You could try like super glue or some sort of plastic epoxy stuff to repair it. But you'll probably end up clogging the passage way.

 

I believe I have a whole set of vsv's at the shop. Mid interested pm me shipping shouldn't be much depending on location.

 

I've been looking at the FSM, but it still doesn't make sense. PAIR valve = AS valve, right? All my FSM mentions is an AS system, but it shows that vsv valve as having a check valve, which this valve in question doesn't have.

But the other vacuum valve farther back on the valve cover does have a check valve on one of it's hoses.

The two vacuum hoses that come out of the first vsv I pictured lead to the connection with the spring on top in this next picture.

Is this still the same valve you thought it was? If so, what is the vsv with the red connector and the check valve?

 

Oh. That's your A/C idle up VSV. I was wondering why it wasn't red.... my mistake. I see now. The red VSV further back is for the AS SYSTEM, then the furthest back is for the fuel pressure (blue)
That spring thing is the A/C idle up adjustment.