5 Wire Wideband Oxygen Sensor/Air Fuel Ratio Sensor for 04-06 Nissan Altima 2.5L 02-06 Sentra 1.8L 350Z 3.5L

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About 5 Wire Wideband Oxygen Sensor/Air Fuel Ratio Sensor

Sensor Type: Heated Please check the fitment or VIN specifics if you are not sure about your vehicle model. Fitment Guide: 2004-2007 Infiniti G35 AWD 3.5L V6 - Upstream Right/Left 2003-2006 Sentra 1.8L 4 Cyl - Upstream (From 04/03） 2004-2006 Sentra 2.5L 4 Cyl - Upstream (2004 Auto Trans; Except Calif.) 2004-2006 Altima 2.5L 4 Cyl - Upstream 2004-2008 Infiniti FX35 3.5L V6 - Upstream Right/Left (From 10/03) 2005-2006 350Z 3.5L V6 - Upstream Right/Left 2006-2008 Infiniti M35 3.5L V6 - Upstream Air-Fuel Ratio (A/F)sensor need to reach a minimum operating temperature of 1200 degrees F to produce an accurate voltage signal. The faster the air-fuel ratio sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM). In order to achieve the require temperature, a heater element is included inside the air-fuel ratio sensor. The ECM controls the air-fuel ratio sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground. The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.