Fitment: Yezoauto 2Pcs O2 Oxygen Sensor Upstream & Downstream Compatible with

Chrysler 300 2005-2012;

Aspen 2007-2009;

Pacifica 2007-2008;

Pt Cruiser 2003-2010;

Sebring 2004-2010;

Town & Country 2008-2010 / Dodge Avenger 2008-2010;

Caravan 2004-2007;

Challenger 2008-2012;

Dakota 2004-2010;

Durango 2004-2011;

Grand Caravan 2008-2010 / Jeep Commander 2006-2010;

Grand Cherokee 2004-2010; Wrangler 2004-2011 /

Mitsubishi Raider 2006-2009 / Ram 1500 2011-2014 /

VW Routan 2009-2010 & More

Reference OE Number: Sg1849, 234-4029, 234-4217, 234-4228, 234-4232, 234-4587, 234-4588, 234-4593, 234-4594, 5149169aa, 56028992aa, 234-4229, 56028994aa, 56029049aa, 234-4030, 5033500aa, 7b0906262a, 234-4598, 5033500aa, 5149169aa, 56028992aa, 56028994aa, 56029049aa, 7b0906262a

Function: Oxygen sensor is an instrument for controlling the exhaust emissions of petrol, diesel and gas engines. It is an oxygen concentration sensor which measures the residual oxygen content of the exhaust gas and then transmits a signal to the engine control unit in the form of an electric voltage. The oxygen sensor voltage allows the control unit to detect whether the mixture is too lean or rich. It allows the control unit to adjust the amount of fuel injected to obtain an optimum mixture.

Signs of a Bad O2 Sensor: Symptoms include poor gas mileage, rough engine idle, starting trouble, and even failure of the catalytic converter. Often, the check engine light will come on to provide OBD II trouble codes to check with a code reader. Garage replacement service for a bad oxygen sensor can be pricey, but changing your own sensor is generally an easy DIY job that can make your car run smoothly again.