Download Hyundai Xg350 Oxygen Sensor Location Images. Their locations are shown in the illustration. Guy at auto parts store sold me part said it's the o2 sensor closest to cyl.

For Hyundai XG350 Santa Fe 2002-2003 3.5L Downstream Left ...
For Hyundai XG350 Santa Fe 2002-2003 3.5L Downstream Left ... from i.ebayimg.com
This unit throws a code p0110 low voltage from air. A check engine light can indicate a broad spectrum of problems with your 2004 hyundai xg350. There are different locations in the exhaust system where o2sensors are positioned.

Hyundai's diagnostic routines are very poor and are often not even present.

I have a 2003 hyundai xg350l 6cyl. Automobile batteries contain exact location shown on the previous page. Upstream right oxygen sensor ngk 25158 quick shipping from multiple locations in the usa! The xg350 oxygen sensors are generally four or three wire oe replacement types, but some minor modifications may be required for some.