What generic fuel corrections are
Nexus ECUs come with a set of dedicated fuel corrections, like coolant temperature, air temperature and barometric corrections. Generic correction tables are the blank slate. You decide what they respond to, and when they're allowed to apply. You get up to four of them.
Setting one up
- Enable a generic table under the fuel corrections.
- A Conditions node appears underneath it. Give the table a custom name so it's obvious in your tune and logs what it's for.
- Optionally add conditions that decide when the table is active. With none set, it applies all the time.
- Choose the axes and fill in the correction values.
Ways we use them
- Correcting fuel for fuel temperature from a flex fuel sensor.
- Adding fuel only while a water spray or other accessory is running.
- Trimming fuel for a specific switch-selected map or event.
Name each table clearly. Six months later, a table called something like Fuel Temp Trim tells you exactly what it does. See fuel corrections for the full list of built-in options.
