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TYPICAL MALFUNCTION THRESHOLDS Heated Oxygen Sensor Output Voltage (Abnormal Voltage Output): TYPICAL MALFUNCTION THRESHOLDS - HEATED OXYGEN SENSOR OUTPUT VOLTAGE Heated Oxygen Sensor Output Voltage (Low): TYPICAL MALFUNCTION THRESHOLDS - HEATED OXYGEN SENSOR OUTPUT VOLTAGE Monitor runs whenever P0102, P0103 (Mass Air Flow Sensor) Engine coolant temperature 75°C (167°F) or higher Estimated catalyst 400°C (752°F) or more Fuel cut ON Either of following conditions met: 1 or 2 1. All of following conditions (a), (b) and (c) met - (a) Commanded air-fuel ratio 14.3 or less (b) Rear HO2 sensor voltage 0.21 to 0.59 V (c) OSC (Oxygen Storage Capacity of Catalyst) 2.5 g or more 2. All of following conditions (d), (e) and (f) met - (d) Commanded air-fuel ratio 14.9 or more (e) Rear HO2 sensor voltage 0.21 to 0.59 V (f) OSC 2.5 g or more All of following conditions (a), (b) and (c) met - (a) Commanded air-fuel ratio 14.3 or less (b) Rear HO2 sensor voltage Less than 0.21 V (c) OSC 2.5 g or more
2009 Toyota Tundra 2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra
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