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Home >> Scion >> 2006 >> tC Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2AZ-FE) >> SFI System >> DTC P0171 System Too Lean (Bank 1) : DTC P0172 System Too Rich (Bank 1) >> Typical Enabling Conditions

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present P0010 (VVT OCV Bank 1)
P0011 (VVT System 1 - Advance)
P0012 (VVT System 1 - Retard)
P0021 (VVT System 2 - Advance)
P0022 (VVT System 2 - Retard)
P0100 - P0103 (MAF meter)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for Closed Loop)
P0335 (CKP sensor)
P0340, P0341 (CMP sensor)
P0500 (VSS)
Fuel system status Closed-loop
Battery voltage 11 V or more
Either of following conditions A or B set -
A. Engine RPM Below 1,100 rpm
B. Intake air amount per revolution 0.22 g/rev or more
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