i was driving today, turned on the ac, then heard banging all around under the hood. turned off the ac... drove around, and then I heard two more bangs. stopped checked under the hood, saw the sensor on the top of the intake close to the pulleys was gone, with 2 long wires on their lonesome with an open hose that was connected to the sensor. what sensor is this???? What are the long term effects of not having this sensor? D:

 

nobody knows the name of this sensor? D: I just want to go buy another one haha

 

It might be your secondary air injection solenoid. Was it mounted to the air intake box?

 

ok, so sorry to bump this so much, but i was hoping for an answer soon. turns out, long term effects = alternator wont charge the battery. yes thats right, my car just died in the middle of a parking lot on my lunch break because of a missing sensor. interested to see how that turns out. any feedback on this situation since i have to fix it before 230 tomorrow afternoon?

 

yes it was mounted to the airbox D:

 

#2 on diagram

Probably this ^^^^

Edit: Just saw your last post, but that sensor missing wouldn't cause your alternator not to charge. The wires may have crossed and popped a fuse somewhere. My last ecu constantly threw a P0411 check engine light because those same wires hit the serpentine belt and crossed eachother, damaging the ecu.

 

i certainly hope i did not damage my ecu :/

 

no blown fuses, whats the next step? :/

 

Replacing sensor would be a good place to start. I don't believe your alternator has anything to do with your car not running, in this case. Replace sensor and start troubleshooting from there. Have you checked with OBD2 scanner for any diagnostic codes?

 

The other guy nailed it right on the head. the wires probably touched shorted out the fuse. blew the fuse and I had to replace it, electric tape the wires to stop future contact, and jumpstarted it. started right up. been driving fine since, hopefully no changes. now all I gotta do is replace the sensor, and im good as new. I thank you guys for your help
I was browsing the forums for alternator fuses, and found that there was an ACG 15A fuse under the dash, never checked under the dash yet for fuses when I was posting prior, but that's where the fuse blew when I checked it this morning.
I'm just scared to drive this baby up to new jersey with such a sensitive issue.