View Single Post
Old 10-13-2014, 11:41 PM   #32
steve99
Banned
 
Join Date: Dec 2013
Drives: FT86
Location: Australia
Posts: 7,996
Thanks: 1,035
Thanked 4,994 Times in 2,984 Posts
Mentioned: 598 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by BuBlake View Post
I have a few questions when tuning AFR.

First and foremost, the AFR when I log does not match the open loop fueling table. For example, I am supposed to be getting 11.8 or so at 1.4 load, 6k rpm, but instead at wot I am basically always getting a commanded AFR of 11.25:1. What is causing this? Thanks
most likelyOpen loop MAF scaling off

O2 sensor inaccurate
Exhaust or intake leaks.
steve99 is offline   Reply With Quote