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Home >> Toyota >> 2015 >> Prius One >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System (Diagnostic Codes (P0300-P0657)) (Except Plug-In)) >> SFI System >> DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected [08/2014 - ] >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

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