After showing you guys (and my class) the operation of an oxygen sensor on a motorcycle (   • How to test an O2 sensor on a Harley ...  ), I used this opportunity to discuss a very difficult topic from chapter 5 in my Engine Performance Diagnostics book. The topic is "Oxygen Sensor Bias Voltage". In this video I want to show you what it is, and how to use it to your diagnostic advantage. The first part of this video we will be reviewing some pages from my book, so if you've been wondering what type of material is in there, this is your chance to see. Then I move back to my 2016 Harley Davidson VRod Muscle, to show the exact same bias voltage used on some of our automotive systems is also being used on motorcycles. To see the rest of my classroom lectures on Oxygen Sensors and Fuel Trim as well as hundreds of exclusive case studies, subscribe to ScannerDanner Premium, right here on YouTube. There is a 14 day free trial period with no obligation. Thanks for your support!

Engine Performance Diagnostics chapter 5

Topics discussed
what is oxygen sensor bias voltage
how to use bias voltage to quickly locate opens and shorts in a circuit
what happens to bias voltage when the sensor changes temp.
does an oxygen sensors resistance change with temp.?
how to quickly check a heater circuit of an oxygen sensor
what is a "time to activity" test?

Tools used
digital multimeter
lab scope
Scope Distribution Box w/Amp Probe Loops (aeswave)

Playlist
(Chapters 4 and 5) Fuel Trim and Oxygen Sensor Testing
   • (Chapters 4 and 5) Fuel Trim and Oxyg...  

Related videos
How to test an O2 sensor on a Harley Davidson
   • How to test an O2 sensor on a Harley ...  
Ford O2 Sensor Testing wiring tests (no bias voltage)
   • Ford O2 Sensor Testing  wiring tests...  
Honda Oxygen Sensor quick tests (bias voltage)
   • Honda Oxygen Sensor quick tests (bias...  
How to quickly test an oxygen sensor circuit (GM bias voltage)
   • How to quickly test an oxygen sensor ...  
What can cause an O2 sensor to read near 5 volts? (Chrysler bias voltage)
   • What can cause an O2 sensor to read n...  
System Too Rich P0172, P0175 from a blown O2 heater fuse (Jeep)
   • System Too Rich P0172, P0175 from a b...  

For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/joinsc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better online training of how to troubleshoot automotive electrical and electronics systems anywhere!

Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.