I remember reading a couple years back that lower iats will allow computer to change advance, and can help save gas mileage slightly. At the time, i used a chart for proper iat resistance values, and added enough to lower my iats by about 20*

in other words, if my intake is at 50*, my sensor is showing about 30*


now that i have software to log data, i'm wondering if i should put this back to stock or if it helps (if even a little). i get TERRIBLE gas mileage until my coolant temps hit 180ish (assuming that's about when I hit closed loop) but it seems I get better mileage on warm days, then i do on cold nights (even after truck is warmed up)

i'm more worried about gas mileage then i am about 'going fast'...been putting $80 a week in the tank, and i'm about to start driving about 6x as much every week for work.


any suggestions?