Amb

[bbychvz]

what the hell is it. where is the temp coming from?(encourage

its always 5-10+/- degrees off. what the hell!!!

 

[numbnuts22715]

ambient air temp should be the outisde air temperature.

 

[Jays07MS3]

I would also like to know where the sensor is located. I know cashmere said he moved his to the engine bay so he could keep an eye on the temps.

 

[Rotus8]

I would also like to know where the sensor is located. I know cashmere said he moved his to the engine bay so he could keep an eye on the temps.

It is down low just in front of the radiator.

 

[BluMicaR]

It is down low just in front of the radiator.

Wow, isn't that, like, a terrible place for accurate outside temperature heat sensing? I mean, the RADIATOR... It RADIATES heat. I'm thinking, "Good job, Mazda," is that an accurate assumption, Rotus, or is it an okay place because at speed the variables are null?

 

[Rotus8]

Wow, isn't that, like, a terrible place for accurate outside temperature heat sensing? I mean, the RADIATOR... It RADIATES heat. I'm thinking, "Good job, Mazda," is that an accurate assumption, Rotus, or is it an okay place because at speed the variables are null?

When you are moving it's fine. When you are stopped, there's no place that won't get some effect from the heat of the car or some other source of heat. Anyway, it isn't a critical measurement for anything, just another thing for you to play with. (Yeah, I know it has some influence on the auto climate control system, but it isn't going to blow up your motor).

 

[bbychvz]

If its out side temp. why is it always wrong by at least 5-10+/- degrees?

Since its in the location stated above its probably the temp. in side the engine bay....
I think....Whatever thanks

 

[major error]

No matter where the sensor is located on the car, it's not going to give an entirely accurate reading. As it stands, being *just* behind the honeycomb grille is probably one of the few acceptable places to put it.

 

[Abaddon]

Wow, isn't that, like, a terrible place for accurate outside temperature heat sensing? I mean, the RADIATOR... It RADIATES heat. I'm thinking, "Good job, Mazda," is that an accurate assumption, Rotus, or is it an okay place because at speed the variables are null?

The amount of energy leaving the radiator through radiation is almost negligible.

Secondly.. My temperature sensor is always right on the money...

 

[major error]

The amount of energy leaving the radiator through radiation is almost negligible.

Wouldn't that defeat the purpose of a radiator? (coffee)

Actually, the readings would only be off if the car were hot and sitting still. The sensor is situated behind the honeycomb grille, and has a few inches clearance in front of the radiator. ie, the air passes the sensor before getting to the radiator...

 

[AutoXRacer]

Remember guys, you have fans that pull air in through the radiator...
So the temp sensor does not see the radiating heat from the radiator...the fans keep pulling fresh air through the temp sensor...

Just place your hand in front of the grill and you'll feel air being pulled into the grill...

 

[Savate]

Remember guys, you have fans that pull air in through the radiator...
So the temp sensor does not see the radiating heat from the radiator...the fans keep pulling fresh air through the temp sensor...

Just place your hand in front of the grill and you'll feel air being pulled into the grill...

hit the nail on the head AutoX, anywhere else will have false readings too. Placing the sensor under the car will give readings from the heat of engine, trans, or exhaust depending on location not to mention the heat or cold coming off the pavement. no placement on the car will be 100% accurate. (sad2)

 

[bbychvz]

Maybe
But my Girl's scion TC has a better reading then my car...hers is almost always currect...if not just off by one or two degrees

 

[Abaddon]

Wouldn't that defeat the purpose of a radiator? (coffee)

The energy transfer is due to Natural and Forced convection.

A very long time ago in cars (read: turn of the century) there was an actual box, that was black, whos primary heat transfer method was radiation. The name just stuck.

Now, its all Convection.