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Home >> Kia >> 2003 >> Optima L4-2.4L >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Exhaust Gas Recirculation >> EGR Control Solenoid >> Testing and Inspection
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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.

Using GST:






Harness Inspection Procedure: