Based on a custom tune I have it's set for a commanded A/F ratio of 11.7 @ WOT. I want to change this to 11.4. To achieve this I've been told to add 2% of fuel @ WOT. From what I've read when you begin flashing the PCM with the custom tune you will be prompted to make changes to the tune. I'm asking for what exactly will this option be defined as and will the change be in percentage points? I'd rather know beforehand than to dive in and possibly change something incorrectly.
Thanks in advance!
Cheers,
Ray
Thanks in advance!
Cheers,
Ray