MAF sensor trouble code (P0102) caused by a bad ground (GM 3100)

2000 Chevy Malibu MAF Ground problem This is a good video on how to check sensor grounds using a voltmeter. Once you get more comfortable with this type of testing, it is far more accurate than the ohmmeter. The key though is to make sure the circuit you are testing is "loaded". Also to all of you "free diagnostics" parts supply companies. YOU CANNOT CHANGE A PART BASED ON A TROUBLE CODE! Engine Performance Diagnostics chapter 12 Symptoms - hesitation - low power - MAF sensor code (P0102) Fix - repair bad engine block ground connector Tests shown - MAF sensor scan data tests - MAF sensor voltmeter or scope testing - how to test a sensor ground circuit - how to locate a bad block ground Tools used - scan tool - lab scope - digital multimeter - backprobing tools Playlist - (Chapter 12) Mass Airflow Sensor Testing https://www.youtube.com/playlist?list=PLAFYVCyenqcrUtzoyk65FMfo9pxhK6Vay Related videos - MAF sensor code P0102 from a bad engine computer - (Chevy van) https://youtu.be/dCyPkbli6zs - How to test a GM MAF Sensor (Part 1) https://youtu.be/p2QLxxstRn8 - How to test a GM MAF Sensor (Part 2) https://youtu.be/E8sBg7kMbOw - How to test a MAF sensor using a Picoscope - GM https://youtu.be/h5KAHv47viw 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.