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2005 Hyundai Elantra Code Reads: P0030 Pnd Mod 1/1 Heated Oxygen Sensor, Heater Control Circuit Bank 1 Sensor 1 but Check engine light does not go on and car seems to be running smooth.

Vehicle: 2005, Hyundai, Elantra

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P0030 Heater control circuit (Bank 1 Sensor 1)

This code is more of a intermittent codnition , it usually will be a hisory code that why the CK ENG LT does not come on for this unless it is a hard code condition , this is considered a soft code.

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