LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2008 >> Outback Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P1491 Positive Crankcase Ventilation (Blow-By) Function Problem >> Diagnostic Method >> Normality Judgment
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Normality Judgment

If the following conditions are established after predetermined amount of time has passed, judged as OK.

Judge as OK and clear the NG when the following criteria are met.