Civic DX Sedan L4-1590cc 1.6L SOHC MFI (1999)
Exhaust Gas Recirculation (EGR) Control Solenoid: Description and Operation
Exhaust Gas Recirculation (EGR) Control Solenoid Valve*7
When EGR is required for control of oxides of nitrogen (NOx) emissions, the ECM controls the EGR control solenoid valve which supplies regulated
vacuum to the EGR valve.
*7 CVT (D16Y5 engine)