Was checking the battery terminals today due to a sluggish start...and noticed this piece that looks broken..hence the reason it comes off the way it does, instead of unplugging like it should. It's on the passenger side.

 

That's the barometric pressure sensor, tells the ECU how much air pressure to compensate for at the MAF calculation.

I'd just cement it back on, doesn't look like it's been broken, just cracked the case.

Good eye, but it shouldn't affect startup.

 

Awesome, thanks.