Set(4) O2 Oxygen Sensors For Ford F-150 F-250 5.4L 234-4127 234-4071

Description: Set(4) O2 Oxygen Sensors For Ford F-150 F-250 5.4L 234-4127 234-4071TWO YEARS WARRANTY Specification· Brand new set of 4 oxygen sensors· Stock parts direct replacement· 100% test before shipment· The key parts including chip from top supplier· Plug pins: 4-wire· Connector gender : Male· Mounting style: Threaded-in· Thread size: M18-1.5· Includes 2 pcs upstream oxygen sensors and 2 downstream oxygen sensors Must Know Before BuyingThe following information is for instructional and guidance reference only. We try and make them as accurate as we can.If Check Engine Light is on or an OBDII Trouble/Fault code occurs after installation, check the sensor with a voltmeter as below. If the sensor is good, further diagnosis is required. Therere many different codes for specific functional failures, which are NOT necessarily relevant to the sensor. Find out what the Code means before leaving any feedbacks. Q: How do I know the O2 sensor is good or not?A: The only way to know if the O2 sensor is functioning normally is to check its responsiveness to changes in the air/fuel mixture, by Voltage Measurement or Waveform Simulation.Use a 10-mega ohm digital voltmeter. Hook up the voltmeters red probe to the sensors signal wire and the black probe to engine ground. (Use back probe method, DO NOT pierce the wire.) For a good sensor, voltage should fluctuate constantly between 0.1 and 0.9 volts after starting the engine for 2 or 3 minutes.Goes above range between 0.1 and 0.9 voltRemains below 0.5 voltsStays fixed at a particular voltage ShippingReturnWarranty

Price: 40.99 USD

Location: 九龙

End Time: 2024-10-13T06:57:05.000Z

Shipping Cost: 0 USD