Missing vehicle parameters

General
1

I have not been able to find the following information (2009 Nissan Qashqai J10 1.5dci K9K 106hp manual transmision): Mechanical efficiency, Injector size and Volumetric efficiency. What are these parameters used for?

Regarding Fuel comsuption correction, I assume it is a factor used to adjust comsuption to the ral one, isn’ it?

2
  • Mechanical Efficiency is used only in power and torque calculations to apply powertrain loss to get engine power.
  • Injector size is used for fuel consumption calculations only when its calculated from injector pulse width.
  • Volumetric Efficiency is used only when fuel consumption is calculated from Manifold Absolute Pressure (MAP sensor).
  • Fuel Consumption Correction is a factor to adjust it if necessary.
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