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Home >> Toyota >> 2007 >> FJ Cruiser 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0171, P0172, P0174, P0175: System Too Lean (Bank 1); System Too Rich (Bank 1); System Too Lean (Bank 2); System Too Rich (Bank 2) >> Typical Enabling Conditions
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Typical Enabling Conditions

Fuel-trim: 

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present P0010, P0020 (OCV 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)
P0100 - P0103 (MAP meter)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for, closed loop)
P0335 (CKP sensor)
P0340 (CMP sensor)
P0351 - P0356 (Igniter) P0500 (VSS)
Fuel system status Closed-loop
Battery voltage 11 V or more
Either of following conditions 1 or 2 set -
Engine RPM Below 1,100 rpm
Intake air amount per revolution 0.22 g/rev or more
Catalyst monitor No executed
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