Jbean

So I guess I needed to turn something on to get replies to this. I did take it to Auto Zone to check the code and it was my thermostat. Got it repaired today. Somehow completely forgot about this part and I'm really hoping they had one and put it on... guess I'll be crawling under my car soon. Lol. Too much going on since the beginning of the year!

I went to get in my car and heard a strange noise. Backed out of my driveway and saw this part laying on the ground where my passenger side was parked. Any clue what it is? Could that be why my check engine light is now on?