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Home >> Hyundai >> 2003 >> XG350 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Fuel System) >> MFI Control System >> Engine Coolant Temperature (ECT) Sensor >> Trouble SOOTING Hints

Trouble SOOTING Hints

WARNING: This page is about a different car, the 2004 Hyundai XG350. However, it is still accessible from the selected car via links, so may be relevant.

If the fast idle speed is not adequate or the engine gives off dark smoke during warm-up, the engine coolant temperature sensor might be the cause.

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