What is this little connection for?

[JetspeedCamry]

After inspecting my rear spark plugs with the intake off, i found this little connection in the intake manifold. It has 1 wire, a brown one, with a blue connector. To me, it looks like a temprature switch, but why would this need ANOTHER one? Theres already 4 of them that i know of dotted around the engine already...ECT Sensor, CSI Sensor, Fan Switch and a Guage sensor.

What is this one for!

Pics:



A better pic of the actual sensor and location.


Thanks!

[atobe]

oil pressure ?

[JetspeedCamry]

Originally Posted by atobe

oil pressure ?

The oil pressure switch is near the Oil filter on the front of the block.so couldnt be that...
I checked on a parts website and the photo that they had for "Temprature Sender w/Guage" looked like this...so perhaps this is guage...and the other 2, on the inlet and outlet housing are for something else!?? Weird!

[88 LE]

From the pics and the location (lower intake manifold), I'd say its a air temp sensor.

[marc780]

Hmm hard to tell - remove it and see what comes out. Looks like a coolant sensor. If you unplug it and the gauge pegs out, you have your answer. If it is coolant comes from this hole then its a temp sensor for something.

[JSM1284]

That is the Coolant temperature sending unit