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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0171: Fuel Trim Malfunction - System Too Lean (Upstream) >> DTC Detecting Condition

DTC P0171: Fuel Trim Malfunction - System Too Lean (Upstream): DTC Detecting Condition

Fig 1: DTC P0171: Detecting Conditions & Probable Causes
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