[fallen celt]

Is it just me or does the temperature gauge read a bit on the optimistic side of things? Mine seems to be reading about 3 degrees c above where it should be. Is it picking up on the heat from the engine?

 

[Meancatdaddy]

I think I read in the owners manual that it will pick up engine heat and will not be accurate sometimes

 

[murathanoz]

Mine calculates 8 degree more, 3 is fine

 

[alepplew]

Its reading manifold aspirated air temperature in the airbox for calculating mixture in the Engine Control Unit. Thats why it sees a bit preheated air when the engine is warm.

 

[Derek]

It's about right as long as I'm on the move but if I halt at lights etc. it reads high.

 

[Brantman1]

Yeah mine consistently reads about 8-10 degrees warmer outside than it really is. Even before the engine is warm.

 

[silverluxe]

Is there a technical reason they have the sensor where it is? Is that temperature important to anyone?

Otherwise, ambient temperature of the outdoor world is what I imagine most of us care about?

 

[alepplew]

Yeah: cold air is more dense, warm air expands. Therefore the ECU needs the temp in the intake airbox (plus the pressure) to calculate the mass of air sucked into the cylinder and dose the injected fuel amount and timing accordingly. It is essential for mixture control, the bikers also call it MAP ( for manifold ambient pressure). As seen in another post, any problems with injection mapping (like stuttering, stalls, excessive consumption) are most likely related to those two sensors for temp and pressure in the airbox because the rest is electronic and either works ok or not at all.

 

[MotoChief]

Mine appears to be intake temp since it goes up when the bike is sitting still and goes back down in moving air.