IAT and it's use in tuning
 

Hey just a quick question for tuners mostly. I always thought that on a stock pcm program (dunno about other tunes) the IAT was used to advance and .. . deadvance(whats the word?) timing depending on air conditions. I heard from another tuner that it's only function was to help determine, along with other sensors, how much egr to use. Now i thought egr was based on DFPE and o2's but I'm probably uneducated on this matter. Any info appreciated.


BTW, if someone happens to know what the range of the IAT is and what it's measures are (ohms im guessing) that would be nice too. Thanks

Re: IAT and it's use in tuning
 

One of the IAT's primary functions is to determine the proper spark timing, as you've heard. Keep in mind that the L has 2, IAT1 and IAT2, one before the blower and one after. Timing is determined base on IAT2.

whats the first one for then? And what about N/A applications.

thx for the responce btw. :thumbsup:

deadvance=retard

deadvance=https://www.f150online.com/galleries...4578-90575.gif

:devil:

hey just cuase i made up a word doesn't make me retarded. Geez, this forum :rolleyes:

:devil: :devil:

Thanks, i couldn't rememeber the word for the life of me, doubt i'll forget it now.

well, my work here is done!