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Home >> Lexus >> 2008 >> LS 600hL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTC P0120 - P0453 >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1); DTC P0174: System Too Lean (Bank 2); DTC P0175: System Too Rich (Bank 2) >> Typical Enabling Conditions

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs are not present P0010, P0020 (VVT-iE Bank 1, 2)
P0011 (VVT System 1 - Advance)
P0012 (VVT System 1 - Retard)
P0021 (VVT System 2 - Advance)
P0022 (VVT System 2 - Retard)
P0031, P0032, P0051, P0052 (A/F sensor heater - Sensor 1)
P0102, P0103, P010C, P010D (MAF meter)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for Closed Loop)
P0335 (CKP sensor)
P0351 - P0358 (Igniter)
Fuel system status Closed loop
Battery voltage 11 V or higher
When either condition below is met Condition 1 or 2
1 Engine RPM Less than 1100 rpm
2 Intake air amount per revolution 0 29 g/rev or more
Catalyst monitor Not executed
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