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Home >> Kia >> 2018 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> Emissions >> EGR Function Testing - KIA >> EGR Function Testing - KIA >> Test 1 >> EGR Control Solenoid
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EGR Control Solenoid

Disconnect vacuum hoses from EGR control solenoid. Attempt to blow air through solenoid. No air should pass. Using jumper wires, apply battery voltage to solenoid. Again, attempt to blow air through solenoid. Air should pass. If solenoid does not function as specified, replace solenoid.