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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System (SFI) - Diagnostics (2AZ-FE)) >> DTC P0171, P0172: System Lean/Rich (Bank 1) >> Typical Malfunction Thresholds >> Fuel Trim Lean:

Fuel Trim Lean:

WARNING: This page is about a different variant/trim than selected.
TYPICAL MALFUNCTION THRESHOLDS (FUEL TRIM LEAN)

Smoothed fuel trim learning value 34 %(1) or more
(1) The threshold value varies with the Engine Coolant Temperature (ECT).
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