Owner's Manual
Page 129
... injected to convert hydrocarbons (HC), carbon monoxide (CO) and oxides of nitrogen (NOx) caused when fuel mixture burns at high temperature. The Electronic Control Unit (ECU) detects the amount of air drawn into the combustion chambers where it reduces peak temperature by recirculating exhaust gas through the EGR valve and intake...
... injected to convert hydrocarbons (HC), carbon monoxide (CO) and oxides of nitrogen (NOx) caused when fuel mixture burns at high temperature. The Electronic Control Unit (ECU) detects the amount of air drawn into the combustion chambers where it reduces peak temperature by recirculating exhaust gas through the EGR valve and intake...