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Home >> Lexus >> 2006 >> RX 330 FWD >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System (3MZ-FE) >> SFI System >> 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
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present P0010, P0020 (VVT VSV), P0011, P0012, P0021, P0022 (VVT system-Advance, Retard), P0031, P0032, P0051, P0052 (O2 sensor heater sensor 1), P0031, P0032, P0051, P0052 (A/F sensor heater sensor 1), P0100, P0101, P0102, P0103 (MAF sensor), P0115, P0116, P0117, P0118 (ECT sensor), P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (TP sensor), P0125 (Insufficient ECT for closed loop), P0335 (CKP sensor), P0340, P0341 (CMP sensor), P0340, P0341 (CMP sensor), P0351, P0352, P0353, P0354, P0355, P0356 (Igniter), P0500 (VSS), P0510 (Idle switch)
Fuel system status Closed loop for more than 13 seconds
Battery voltage 11 V or more
Either of following conditions 1 or 2 set -
1. Engine RPM Below 1,100 rpm
2. Intake air amount per revolution 0.22 g/rev or more
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