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Home › Toyota › 2012 › Prius Two › Repair and Diagnosis › 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

Typical Malfunction Thresholds

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