Fuel trim, rapid adjustment, bank X (%)
Rapid adjustment is the continual adaptation of the fuel/air mixture during operation.
Bank 2 only applies to 6-cylinder engines.
HINT: Fuel trim returns to 0% once diagnostic trouble codes (DTCs) have been cleared.
Fuel trim, slow adjustment, bank X (%)
Slow adjustment is the fuel trim value that adjusts the fuel/air mixture for a longer period of time and factors in component aging, tolerances, etc.
Bank 2 only applies to 6-cylinder engines.
HINT: Fuel trim returns to 0% once diagnostic trouble codes (DTCs) have been cleared.