•  An EGR valve with a stepping motor has been adopted for optimum control according to engine operation conditions.

•  For control of EGR system, refer to CONTROL SYSTEM, EGR CONTROL. (See EGR CONTROL OUTLINE [L8, LF, L5], EGR CONTROL BLOCK DIAGRAM [L8, LF, L5], EGR CONTROL OPERATION [L8, LF, L5].)