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Home >> Subaru >> 2021 >> Forester Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0401: EGR Abnormal (EGR Amount Too Small) >> General Description >> General Driving Cycle
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General Driving Cycle

Perform the diagnosis only once during deceleration fuel cut from a vehicle speed of 36km/h (22.4MPH) or more.

Be careful of vehicle speed and engine speed. (Diagnosis will not be completed if the vehicle speed and engine speed become out of condition due to deceleration.)

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