What is this? It has a connector too

[Jmrec100]

I don't remember taking this off but I know I did. So I don't know what it is and don't even know where it goes . It has a connector too. Some sort of vacuum take off? From the Air filter housing leading from the 'air tube" to the throttle body?
Anyone's help is appreciated

[Airjer_]

That's the EVAP purge solenoid. There should be a vacuum diagram under the hood that shows approximately where it goes. There will be a metal tab that it slides onto. A think the connector is usually red.

If you could post a year and engine I may be able to help a little more.

[Jmrec100]

!999, 2.2

I expect to see a tab. Will it be on the Air Cleaner etc assembly or on the firewall somewhere?

and thanks for the help on the other connector.

[Jmrec100]

This may lead to the same connector I have another question on?
On the exhaust manifold side, I see the O2 sensor mounted on the exhaust manifold but I cannot find where plugs into. This is a purple connector. Is it on the filter - throttle body air intake housing? Then there is another orange or maybe its red connector. Is that the one that connects to the evap purge?

The orange-red connector comes out of the harness that connects to the auto trans shift connection. Thanks
+++++++++++++++++++++++
Now I found where the connectors go. They connect to each other. Weird? I looked at the exhaust manifold I removed from the old engine when Pulling it out and found the O2 connector different. The original engine has a single wire O2 Sensor . This replacement engine has a 2 wire O2 Sensor and a different type connector. That is why I could not find the mates. So now what do I have? I was going to remove the original O2 Sensor out of the manifold and replace it in the new engine. But that is a lot of work. Why are they different? can I mate the new O2 sensor connector to the original plug? But which wire. I am assumiing either one wire was a dumby wire used in several model cars or that this is a ground? Or ???? Any ideas?
+++++++++++++++++++++++++++++++++++++++++++
I just switched out my O2 sensor (single wired) , Good to go now.

That evap purge solenoid . That's for the air conditioner? right?