Optima L4-2.4L (2001)
EGR Control Solenoid: Testing and Inspection
EGR SOLENOID VALVE
The EGR solenoid valve is a duty control type solenoid valve, which controls EGR valve operating negative pressure to the throttle body a port.
CIRCUIT DIAGRAM <2.4 DOHC>
TROUBLESHOOTING HINT
If the results of EGR solenoid valve on-vehicle and off-vehicle inspections are normal, but the diagnostic trouble code for EGR system failure is
displayed, check the EGR valve, vacuum hose and EGR passage for blocking.
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