Civic EX Sedan L4-1668cc 1.7L SOHC (VTEC) MFI (2001)
_mfi/Page-1245001.png)
EGR Valve: Description and Operation
The EGR valve lowers peak combustion temperatures and reduces oxides of nitrogen emissions (NOx) by recirculating exhaust gas through the intake
manifold and into the combustion chambers.
