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Home >> Toyota >> 2010 >> Matrix Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control (SFI) System (2ZR-FE) (Diagnostic Codes (P0010-P043E)) >> SFI System >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) >> Typical Enabling Conditions
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Typical Enabling Conditions

FUEL-TRIM

Monitor runs whenever following DTCs not present P0010 (VVT Oil Control Valve Bank 1)
P0011 (VVT System Bank 1- Advance)
P0012 (VVT System Bank 1- Retard)
P0013 (Exhaust Oil Control Valve)
P0014 (Exhaust System - Advance)
P0016 (VVT System Bank 1 - Misalignment)
P0017 (Exhaust VVT System - Misalignment)
P0031, P0032 (Air Fuel Ratio Sensor Heater - Sensor 1)
P0102, P0103 (Mass Air Flow Meter)
P0115, P0117, P0118 (Engine Coolant Temperature Sensor)
P0120, P0121 P0122, P0123, P0220, P0222, P0223, P2135 (Throttle Position Sensor)
P0125 (Insufficient Engine Coolant Temperature for Closed Loop Fuel Control)
P0335 (Crankshaft Position Sensor)
P0340, P0342, P0343 (Camshaft Position Sensor)
P0351, P0352, P0353, P0354 (Igniter)
P0365, P0367, P0368 (Exhaust Camshaft Position Sensor)
P0500 (Vehicle Speed Sensor)
Fuel system status Closed-loop
Battery voltage 11 V or more
Either of following conditions 1 or 2 set -
1. Engine RPM 720 rpm or less
2. Intake air amount per revolution 0.16 g/rev or more
Catalyst monitor No executed
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