Test DN: Step 99

99) EVR Check  Turn key off. Disconnect vacuum hose from EGR valve and plug hose. Perform KOER Self-Test. If Code 34 is present, check EVR filter for obstructions. Replace if necessary. If filter is okay, replace EVR solenoid. Connect all vacuum hoses and repeat QUICK TEST. If Code 34 is not present, fault cannot be duplicated at this time. Clear codes and repeat QUICK TEST. Testing is complete.