Injector dead time (also called injector latency or offset) is the minimum amount of time it takes for a fuel injector to physically open and begin delivering fuel after it receives an electrical signal. This delay varies based on battery voltage: the lower the voltage, the longer the delay.
Failing to compensate for injector dead time leads to incorrect fueling, especially at low pulse widths (idle, light throttle), resulting in poor AFR control, rough idling, or hesitation.
Dead time compensation is critical for:
Precise fueling at low loads.
Proper AFR control in closed loop.
Smooth cold starts and idle stability.
Consistent fueling during voltage fluctuations (e.g., fan, alternator load).
Load: Loads a previously saved dead time table from ECU memory.
Store: Saves the current dead time table into ECU memory for permanent use.
Import Table: Allows importing a dead time table from a file. Useful when using known values from injector manufacturers or other setups.
Quick Cal.: Opens a quick calibration utility for setting dead time, typically based on measured data or automatic tools, we have a few injectors added on the quick cal menu, you can check if yours are there and/or create new pre-configurations.