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MONITOR STRATEGY Related DTCs P0171: Fuel trim lean (for Bank 1) P0172: Fuel trim rich (for Bank 1) P0174: Fuel trim lean (for Bank 2) P0175: Fuel trim rich (for Bank 2) Required Sensors/Components Air fuel ratio sensor, Mass air flow meter, Crankshaft position sensor Duration Within 10 seconds MIL Operation 2 driving cycles TYPICAL ENABLING CONDITIONS Monitor runs whenever following DTCs not present P0010, P0020 (VVT oil control valve) P0011, P0021 (VVT system - Advance) P0012, P0022 (VVT system - Retard) P0013, P0023 (Exhaust VVT oil control valve) P0014, P0024 (Exhaust VVT system - Advance) P0015, P0025 (Exhaust VVT system - Retard) P0016, P0018 (VVT system - Misalignment) P0017, P0019 (Exhaust VVT system - Misalignment) P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater) 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0171,P0172,... |