Thread: Increased MPG
View Single Post
  #5  
Old 05-16-2008, 01:22 AM
4.8t 4.8t is offline
Hummer Novice
 
Join Date: Sep 2006
Posts: 15
4.8t is on a distinguished road
Default Re: Increased MPG

ok figured it out. it doesn't raise the afr it would actually lower it. the hydrogen acts as a fuel and there for burns more of the oxygen so it will show rich on the o2's. due to the lack of oxygen. so it will actually pull fuel to raise the afr back up to 14.7:1.
Reply With Quote