Ignition System Testing - Primary Current [Audi A6 part 2 of 2]
This is an SD Premium class from a few years ago where I am using a live case study to introduce a new class to ignition systems and coil current ramp testing. To join my classes visit https://www.scannerdanner.com/join-scannerdanner-premium.html and sign up for the free trial! 00:00 - review of part 1 https://youtu.be/qRvWefjb0F4 00:48 - @PicoScopeAutomotive 01:25 - low current probe connections 03:11 - initial settings of a lab scope (scale and time base) 09:00 - first view of the coil current ramp patterns 10:00 - scope sample rate 11:00 - when and how to use a scope trigger 14:00 - how to sync the coil current ramps (ID specific cylinders) 18:05 - moment the misfire occurred 21:30 - scope buffer 24:20 - open coil winding or open driver? 26:05 - view of the underside of the coil/module assembly 29:00 - ignition coil circuit design (driver in PCM vs driver in coil) 31:20 - what an open plug wire looks like 38:10 - final review showing the failure (2 cylinder misfire) ScannerDanner Tools: https://www.scannerdanner.com/tools.html https://www.amazon.com/shop/scannerdanner 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.
