Injector opening duration
WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of SAAB-SCANIA OF AMERICA, INC.
The fuel volume/combustion is converted to the time during which the injector must be open based on the knowledge of the injector flow at 3 bar differential pressure.