I have tried to do a search, but not much luck, what is the sensor that is inside the Air Resonator Box that sits on top of the engine on a 2003 Dakota 4.7?

 

can you be more specific or post a pic? im not sure what a resonator box is. are you talking about the box that comes from the filter and goes to the throttle body? if so, there is no sensor in it.

 

Yes Correct the box that sits on top of the throttle body, to take it off I have to remove the wire clip that is connected to a sensor, when I flip it over, you can see the sensor, it is long, and has a couple of wires on it. I did not think my truck had a Mass Air Flow Sensor, but now I am not sure.

I will get a picture tonight when I get off work.

 

ok cool. i am in the midle of changing my plugs as i type here. so i have the "hat" off the TB. i have no plugs going to mine. post when you can. im sure someone else will chime in by then.

 

I replaced my ignition coils and plugs this weekend, so I got a change to take the box off, and here is a picture of the sensor. What is it?

 

Looks like IAT to me. Def a thermistor on the end.

 

Emission : Air Temperature Sensor

 

Thanks, that explains it.

 

Interesting. There are no wires on my resonator either.

Looks like they moved it from the plenum.