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Home >> Toyota >> 2019 >> C-HR LE >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (W/O Canister Pump) - Diagnostic Codes (P0010-P0351) >> SFI SYSTEM (w/o Canister Pump Module) >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) [10/2017 - 12/2021] >> Typical Enabling Conditions
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Typical Enabling Conditions

Fuel system status Closed loop
Battery voltage 11 V or higher
Either of the following conditions is met 1 or 2
1. Engine speed Less than 720 RPM
2. Engine load 13% or higher
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