where is th bank 1 sensor 1 for a 2005 Hyundai accent?
Bank 1 is where cylinder 1 is located, Sensor 1 are the upstream sensor, Being a 4 cylinder engine you would not need to worry about a Bank 2.
Here a 02 sensor for a 4 cylinder engine , being Sensor 1 this would be the upstream 02 sensor. or the 02 sensor before the catalytic convertor.
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