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

Описание: 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
   • (Chapter 22) No Spark Troubleshooting, Ign...  

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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.
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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.