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Home >> Hyundai >> 2005 >> Elantra GLS, 4D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Troubleshooting Procedures >> DTC P0170: Fuel Trim (Bank 1) >> DTC Description

DTC Description

If the lambda controller reaches the maximum or minimum threshold, then feedback control is no longer possible and emissions will be increased. The PCM sets DTC P0170 if no proportional fuel adaptation occurs for a defined time after the lambda controller has reached its minimum or maximum threshold.