Mopar 56029084AA Oxygen Sensor

Be particularly careful when servicing an oxygen sensor. Keep grease, dirt, and other contaminants away from the electrical connector and the louvered end of the sensor, and do not use cleaning solvents on it. Oxygen sensors are extremely delicate, so avoid dropping or handling them roughly. Make sure the silicone boot on the sensor is installed correctly to prevent melting and ensure proper operation. When removing the sensor, it may be difficult to loosen when the engine is cold, so start and run the engine for a minute or two before attempting removal. Use an oxygen sensor socket if available.

For the 2.4L engine (2014 and earlier), the upstream sensor is located near the exhaust manifold, while on all other engines, the left and right upstream sensors are located at the top of the catalytic converters. The downstream sensors are located on the side of each catalytic converter.

To diagnose the Throttle Position Sensor (TPS), disconnect the electrical connector, use a digital ohmmeter to check the resistance readings while moving the throttle lever, and replace the TPS if readings are incorrect.

Keep grease, dirt, and other contaminants away from the electrical connector and the louvered end of the sensor. Do not use cleaning solvents on an oxygen sensor. Avoid dropping or handling them roughly. Make sure the silicone boot on the sensor is installed correctly to prevent melting and ensure proper operation.

On 1991 and later models, the emissions maintenance indicator light can only be reset with a special tool. After replacing the oxygen sensor, take the vehicle to a dealer service department or other properly equipped repair facility and have the light reset.