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2004 GM Ecotec 2.2 misfire, no spark from one coil, bad ignition module

This is a common failure on the GM 2.2 Ecotec engine used in the Saturn Ion, Chevy Cavalier, Chevy Cobalt etc., making the testing methods shown very valuable for anyone working in the field. This video makes for a great follow up to my previous video covering Toyota four wire ignition coils. Despite the different designs at work, many of the operating principles are the same. Engine Performance Diagnostics chapter 22 page 15 Symptoms check engine light (P0300, P1599) severe lack of power Fix replacing the ignition module Tests shown how to use GM misfire data during diagnostics understanding ignition coil control circuit design ignition module transistor operation and testing how to scope test an ignition module with voltage and current how to test an ignition module with a test light how to ohm check an ignition coil primary winding using a flow chart to understand factory testing methods analyzing ignition coil current waveforms Tools used scan tool lab scope low amp probe incandescent test light digital multimeter Playlist (Chapter 22) No Spark Troubleshooting, Ignition Coil & Module Testing    • (Chapter 22) No Spark Troubleshooting...   Related videos How to troubleshoot a no spark condition with a test light (Subaru)    • How to troubleshoot a no spark condit...   Ford 5.4 shorted coil primary winding and bad computer driver    • Ford 5.4 shorted coil primary winding...   How to test an ignition coil with a test light (Nissan C.O.P design)    • How to test an ignition coil with a t...   Ignition coil-module test with test light (a ScannerDanner Premium video)    • Ignition coil-module test with test l...   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.