A quick easy way of getting another 1 mpg + (HyundaiTech : Youropinion please..)

On my 1998 Chevy Cargo Van, I took off the fresh air hose for the
filter box so it takes in warm engine compartment air instead of
cooler fresh air (I measured approx. 82 f. incoming engine air on a 70
f day) . Ive ran two tanks of fuel thus far and each showed a 1.5 mpg
increase. Im currently trying the same thing on my 2002 Hyundia
SantaFe , 2.7 litre...and will report my findings after a couple of
tank fillups. It appears that the engine computer adjusts the fuel
mixture leaner when it senses warmer incoming air ; HyundiaTech :
What are your thoughts on this ? thanks.

 

"It appears that the engine computer adjusts the fuel mixture leaner whe
it senses warmer incoming air...."

Yep. That's why people looking for more power stuff the air intake as fa
away from the engine compartment as they can-- it results in richening th
fuel mixture.

As far as the actual fuel economy increase, I cannot say as I have any wa
to support the notion

 

REPLY: Thanks for that confirmation. Since i dont use my 2002
Hyundai on the Drag Strip trying to get a couple tenths of a second
better... I dont mind pulling the cold air intake and getting better
fuel economy. So far in the Work Van, its working out well. We shall
see how it goes in the Hyundai SantaFe.