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Fuel Injector Not Pulsing "Intentional Shut Down" an SD Premium video

3,604 Views· 01/04/24
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This is a 2011 Honda Odyssey 3.5L with a cylinder #3 misfire. This lecture is part of my Chapter 18 "Fuel Injector Testing" playlist on ScannerDanner Premium. You can subscribe here for a 14 day free trial: https://www.scannerdanner.com/join-scannerdanner-premium/subscribe-to/3-scannerdanner-premium.html Video breakdown: 0:32 intentional shut-down of a fuel injector introductions 1:07 fault codes, cause of the misfire (bad spark plug) 2:04 misfire data on scan tool 3:53 under hood connections with the scope 5:11 first view of the fuel injector waveforms on the scope 6:00 zeroing the amp probe 6:28 electrical "noise" on the injector circuit with the key on 6:40 electrical diagram of all the components running on the fuel injector fuse 8:27 fuel injector current ramp patterns 9:20 review of direction taken to troubleshoot this misfire 11:04 "Zach s Subaru" with faulty injector driver video link https://www.scannerdanner.com/scannerdanner-premium-chapters/chapter-18-fuel-injector-testing/543-2005-subaru-impreza-wrx-faulty-injector-driver-testing-and-repair.html 12:20 open fuel injector discussion 12:48 second mention of the Subaru video 13:50 how to sync an injector waveform 17:00 open circuit diagnostic testing procedures 21:16 intentional shut-down can look like a bad computer driver 23:24 initial start-up is critical (intentional shut-down strategy) 25:05 view of the initial start up and drop-out of the injector pattern 28:00 detailed analysis is not possible for where we took our measurement 30:00 what output circuits react this way (intentional shut-down) Related videos: SD Premium Chapter 18 "Fuel Injector Testing" playlist https://www.scannerdanner.com/scannerdanner-premium-chapters/chapter-18-fuel-injector-testing.html 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-scannerdanner-premium.html 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.

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