Quote Originally Posted by sherlock9c1 View Post
I have often wondered if we could add a humidity sensor (and tables) to the code. The other thing I would add is fuel temperature. Makes me wonder if one could take datalogs and watch the fuel trims compensate for these.
Sensor could be added, but I am not sure what sort of sensor would work in an automotive environment. Do you know of any vehicles that have/use humidity sensor? I am not sure how the MAF handles this but as a guess this is a smaller factor and gets added to the error column. The O2 sensors and short term trims used to zero the error out. (?)

I would like to find details of MAF operation, looks like I need to go digging.

-Tom