In which of the following conditions is EGR not commanded?

Question

Quizplus · Accepted Answer

EGR (Exhaust Gas Recirculation) is typically not commanded in conditions where it could adversely affect engine performance or during conditions where its benefits are minimal. These conditions include when the engine is cold (as the engine needs to reach optimal operating temperatures for efficient combustion), at wide open throttle (where maximum power is needed, and reintroducing exhaust gases could hinder performance), and at idle (where reintroducing exhaust gases could affect the stability of the idle).

In Which of the Following Conditions Is EGR Not Commanded