View Single Post
Old 04-03-2012, 08:34 PM   #181 (permalink)
2000mc
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 13.74 mpg (US)
Thanks: 43
Thanked 331 Times in 233 Posts
i was confused too doax, just gotta buy into his logic to see the explanation....

Quote:
Originally Posted by mja1 View Post
...Measured target AFR will be 5-15% over the actual, meaning you'll be running slightly lean. If this lean event is not enough for the ECM to add enough fuel to noticeably effect long term fuel trims, you'll net slightly better mpg...
and i think the 'if' will be over in about 2 seconds

  Reply With Quote