K2 - Check Positive Crankcase Ventilation (PCV) System
^ Go to Pinpoint Test HG and perform the Positive Crankcase Ventilation (PCV) system diagnostic procedures. See Powertrain Management/Emission Control Systems/Testing and Inspection.
^ Is the PCV system OK?
YES -- Go to K3. K3 - Check Ignition System
NO -- Service as necessary.