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Home >> Toyota >> 2012 >> Prius Three >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Except Plug-In) (Diagnostic Codes (P0010-P043F)) >> SFI System >> DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

Manifold pressure change Less than 1.0 kPa (7.5 mmHg)
At engine speed 1050 rpm