LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 258 (Engine Control System (2ZR-FAE) - Diagnostic Codes (3 Of 8)) >> SFI System >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) [03/2019 - 11/2022] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
Related DTCs P0171: Fuel trim lean
P0172: Fuel trim rich
Required Sensors/Components (Main) Fuel system
Required Sensors/Components (Related) Air fuel ratio sensor
Mass air flow meter sub-assembly
Crank position sensor
Frequency of Operation Continuous
Duration Within 10 seconds
MIL Operation 2 driving cycles
Sequence of Operation None
scientia non olet · About LEMON Manuals