Air Fuel Ratio Sensor Test

Testing Air Fuel Ratio Sensors can be a little complex. Every manufacturer has different testing procedures. Make sure to do research and follow theirs. The tests performed in this video apply to Infiniti. #airfuelratio #airfueltesting Time line: 0:00 Intro 0:07 Code scan 0.29 Testing the circuit 1:36 Air Fuel Ratio Connector ID 1:45 Reference Voltage check 2:28 Sensor Heater voltage check 3:49 Scoping Reference Voltage 5:56 Reference Voltage response test 6:55 Creating a vacuum leak 7:30 Creating a rich mixture 8:24 Scoping Air Fuel Ratio Signal 9:51 Air Fuel Ratio signal response test 11:19 Creating a vacuum leak 12:20 Creating a rich mixture 13:50 Air Fuel Ratio Sensor replacement 14:08 Testing the new Sensor 14:24 Creating a vacuum leak with new sensor 14:55 Creating a rich mixture with new sensor 15:53 Verifying repairs Disclaimer: The content of this video is available for informational and educational purposes only. I cannot guarantee against improper use or unauthorized modifications of this information. MR. DIAGNOSTECH assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not MR. DIAGNOSTECH.