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Home >> Lexus >> 2012 >> HS 250h >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P2419)) >> SFI System >> DTC P0171, P0172: System Too Lean (Bank 1); System Too Rich (Bank 1) >> Typical Enabling Conditions

Typical Enabling Conditions

Monitor runs whenever following DTCs not stored P0010 (Camshaft Timing Oil Control Valve)
P0011 (VVT System - Advance)
P0012 (VVT System - Retard)
P0016 (VVT System - Misalignment)
P0031, P0032, P101D (Air Fuel Ratio Sensor Heater)
P0102, P0103 (Mass Air Flow Meter)
P0107, P0108 (Manifold Absolute Pressure)
P0115, P0117, P0118 (Engine Coolant Temperature Sensor)
P0125 (Insufficient Coolant Temperature for Closed Loop Fuel Control)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle Position Sensor)
P0335 (Crankshaft Position Sensor)
P0340 (Camshaft Position Sensor)
P0351 - P0354 (Igniter)
Fuel system status Closed loop
Auxiliary battery voltage 11 V or higher
Either of following conditions met 1 or 2
1. Engine speed Less than 1400 rpm
2. Intake air amount per revolution 0.22 g/rev or more
Catalyst monitor Not executed
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