LEMON Manuals
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Prius Three
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Repair and Diagnosis (Single Page)
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Engine Performance
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Testing & Diagnosis
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Engine Control System (Diagnostic Codes (P00100 - P2402)) (Except Plug-In)
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SFI System
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DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected
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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