O2 sensor testing (fixed lean) P0174, P0154, P0155 - Mitsubishi

ScannerDanner
ScannerDanner
56.2 هزار بار بازدید - 11 سال پیش - This video is a great
This video is a great demonstration of the quick and effective testing methods I teach for O2 sensors. No service information or wiring diagrams required here! All methods shown apply to any four-wire zirconia O2 sensor you’ll come across in the field, not just Mitsubishi.

Engine Performance Diagnostics chapter 5

Symptoms
 - check engine light (P0174, P0154, P0155, P0138, P0303)

Fix
 - replaced the bank 2 sensor 1 O2 sensor

Tests shown
 - using scan data (O2 signal and fuel trims) to evaluate O2 sensor performance
 - how to use a downstream O2 signal to check if the upstream sensor is lying
 - how to use rapid throttle snaps to create a rich condition without propane/carb clean
 - how to use scan data while unplugging sensors to identify sensor locations
 - using sensor-side O2 wire colors to identify signal and heater circuits without a diagram
 - checking for a bias voltage on a O2 sensor signal circuit
 - how to perform an O2 signal circuit integrity test
 - measuring voltage levels on an O2 signal circuit during the integrity test

Tools used
 - scan tool
 - graphing multimeter

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

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 - P0133 O2 Slow Response (reversed O2 connectors) - Hyundai
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 - How to identify a bad oxygen sensor (signal fixed rich)
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 - What is Oxygen Sensor Bias Voltage? (an SD Premium video)
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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/join-sc... 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 on-line 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.
11 سال پیش در تاریخ 1391/12/23 منتشر شده است.
56,255 بـار بازدید شده
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