Honda Civic, misfire, stall, hard start, weak spark (bad igniter)

In the field, a weak spark condition usually results in ignition coil replacement. However, there’s also the chance of an igniter issue causing poor saturation and prematurely limiting current flow in the coil windings. Rare, but possible, and it’ll burn you if you’re not aware of it. This is where the low amp probe and a lab scope shines during diagnostics. Engine Performance Diagnostics chapter 22 pages 10-25 Symptoms - intermittent stall, hesitation, misfire - intermittent hard start Fix - replace ignition coil igniter Tests shown - how to use an in-line spark tester to identify an ignition issue - how to use a low amp probe to view a coil current waveform - how to use a lab scope to view a coil primary voltage waveform - analyzing a coil current waveform, identifying current limiting - using lab scope triggers during testing Tools used - in-line spark tester - Picoscope automotive 4 channel lab scope - inductive low amp probe Playlist - (Chapter 22) No Spark Troubleshooting, Ignition Coil & Module Testing https://www.youtube.com/playlist?list=PLAFYVCyenqcpihCBcez4sWLv5x2FHNnq- Related videos - How to test for a shorted ignition coil (Honda Distributor) https://youtu.be/hd_bTCsnD7s - Basic Ignition Description, Operation and Testing (any car) https://youtu.be/01kxE1gMgio - Ignition System Designs, Operation and Testing (an SD Premium video) https://youtu.be/_Ijhi7ai1HY - Ford 5.4 shorted coil primary winding and bad computer driver https://youtu.be/y4r5OcHN5Lg - How to identify a shorted ignition coil (Honda C.O.P.) https://youtu.be/jfIG0dk_09s 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.