The one that's in the rubber intake tubing going from the manifold to the canister, the little one. What is it called? I think mine's shot because nothing at all happens when I unplug it while the car is running and my check engine light started comming on after I had been playing around with my intake tubing.

At a guess, I would say it is the MAT...manifold air temperature sensor. A better description of it, and which engine you have, would make it easier to be more definitive!!
Nick
fierofetish

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RESPONSIBILITY WILL SOLVE EVERYTHING.USE IT ALL THE TIME !!!!.

[This message has been edited by fierofetish (edited 04-22-2005).]

Um, nope. That's not it.

It sounds alot like he is reffering to the EGR sensor. Its a switch that tells the computer that the EGR is good and working.

Ah!! Do you mean the purge canister, or the air filter canister?Which engine?
fierofetish

Sorry, the little sensor that is in the rubber hose going from the V6 engine to the box/canister. It's pretty small and grey.

Sorry...does it appear in this picture?

Nick
fierofetish

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RESPONSIBILITY WILL SOLVE EVERYTHING.USE IT ALL THE TIME !!!!.

It's right around there, it's the only sensor actually ON/IN the intake tube.

[This message has been edited by maxsideburn (edited 04-22-2005).]

Well, I have just been out and checked my 86 v6, and I don't have any sensors mounted in the air intake tube.I have checked my GM book, and it doesn't show one either...so I am wondering if somebody has moved the one from the air filter canister to the actual tube, or whether it is something aftermarket? I am really sorry not to be able to help any further..I must be pretty dim!!
Nick

There is a temp sensor that is in the filter canister, they could have moved it.
Look at the left side of your filter canister and see if there is a sensor there.

There is an air charge temperature sensor that screws into the air filter housing. The only thing on the intake tube is the return pipe from the front valve cover.

Ok, mine is put in there aftermarket. The person who had it before me had taken away the canister and just put in a K&N filter.

[This message has been edited by maxsideburn (edited 04-22-2005).]

quote Originally posted by maxsideburn: Ok, mine is put in there aftermarket. The person who had it before me had taken away the canister and just put in a K&N filter.

Thats the MAT sensor (Manifold Air Temperature). I would check what code(s) were recorded when you were messing with the intake, the MAT could throw a 23 or 25 which would indicate a faulty MAT sensor or connection to it

yeah its the stock MAT sensor relocated

Eerrrrr!! Back to post 2?!! !!
fierofetish

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RESPONSIBILITY WILL SOLVE EVERYTHING.USE IT ALL THE TIME !!!!.

autozone doesn't have a "MAT" or Manifold Temperature Sensor" though.

quote Originally posted by maxsideburn: autozone doesn't have a "MAT" or Manifold Temperature Sensor" though.

try an IAT (intake air temp)

You could look under Air Charge Temp. Sensor for one in manifold Air Cleaner Temp Sensor for one in air box

[This message has been edited by Sullivan (edited 04-22-2005).]

I've also heard them called ' Mass Air Temp & Mass Ambient Temp' which is probably a better discription because it is supposed to determine the outside air temp the for A/F mix.

Go to Napa. I just purchased one. the part# TS5100 cost $ 29.99.
Don

GM calls it the IAT [Intake air tempature]

And it was relocated to the tube as part of one of the recalls.

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84 Sport Coupe
87 GT 5 Spd

quote Originally posted by 1MohrFiero: And it was relocated to the tube as part of one of the recalls.

This sensor was not relocated on any recall.
Don