How to test a knock sensor - GM (low power condition) скачать в хорошем качестве

How to test a knock sensor - GM (low power condition)

GM 3100 engine, knock sensor test. This engine had a slight rod knock or upper engine noise that was causing the knock sensor to record a false signal. The computers reaction was to retard ignition timing in an attempt to quiet the knock sensor down. The result was a severe low power condition at times. The main take away with this case study is for low power complaints, don't forget to look at your knock sensor activity as a possible cause. Engine Performance Diagnostics chapter 10 pages 6-7 Symptoms intermittent low power runs good cold and at WOT knock retard degrees on scan data goes very negative Fix internal engine noise was causing false knock sensor activity left knock sensor disconnected (car was not worth repair cost to fix the engine) Tests shown how to test a knock sensor how to determine the cause of a low power condition Tools used scan tool labscope back-probing tools Playlist (Chapters 9, 10 and 11) The 5v Reference and Signal Circuit Quick Tests    • (Chapters 9, 10 and 11) The 5v Reference a...   Related Videos How to test a Knock Sensor (P0328) - Subaru    • How to test a Knock Sensor (P0328) - Subaru   How to test a Knock Sensor (P0328) - Nissan 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.