what in the world is this!

[slowboy101]

So when I bought my car 2 years ago there was a sensor in the back of the engine bay that was never hooked up so I thought I didnt need it. Well now that I am building the talon I took it out and looked at it and it says "DENSO Sensor 949940-6110" I tried searching all over to find out what this is so dose any one know what this is?

 

[BLINKY619]

any picture? maybe knock sensor

 

[Achelea]

Let me guess, between 2 and 3, about an inch below the mating surface?, looks like

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That's your knock sensor.

 

[slowboy101]

I dont have a pic of it

no thats not it, it was posted on a bracket on the fire wall

Here is a pic of it

 

[BeeRacer930]

possibly a map sensor?

 

[donniekak]

Looks like a map sensor for an ebc.

 

[slowboy101]

so what is it used for and do I need it? and if I need it were in the world do I hook it up

 

[BeeRacer930]

its used for sensing pressure (MAP, manifold absolute pressure). I'm assuming that it would go to a vacuum source on the valve cover.