Injector speed is used for modifying the enrichment linearity made by the eFlexFuel system.
In a situation where the engine runs too lean or too rich at idle and low RPM, but the fuel trim values are correct while driving, it is possible to modify the ‘Injector speed’ parameter to fine-tune the injector dead time. If the mixture is too lean at idle/low RPM, select the ‘Fast’ speed. If the mixture is too rich at idle, select the ‘Slow’ speed.
Please note that it is not recommended to change injector speed settings before checking the fuel trim values from the vehicle ECU.