How to test an idle air control valve (IAC) using a Picoscope - Ford

How to test an idle control valve (2-wire solenoid type) using a lab scope. This video is for Automotive Picoscope users, but no matter what type of scope you have, the information contained in this video will help. Even if you do not have a scope, you can still follow this material and measure IAC duty cycle with your digital multimeter. Engine Performance Diagnostics chapter 20 pages 21-26 Symptoms - stalling problems - start stall - low idle speed - car runs normal if your foot is on the gas pedal - check engine light with idle speed control error fault codes Tests shown - how to test an idle air control valve (solenoid type) - how to determine power and ground side switching - how to measure duty cycle Tools used - Picoscope (automotive 4 channel kit) Playlist - (Chapter 20) Idle Speed Problems and Testing /playlist/PLAFYVCyenqcrqC1WhVE1LTzQSn4mbMjdu Related videos - Ford Idle Air Control (IAC) valve test (how to adjust minimum idle speed) /watch/8HFpj9Lhjyahp - Ford idle air control valve (IAC) test - stalling problems /watch/M3SsZwCn3r0ns - Causes of low compression - no start from a stuck closed IAC (part 1) - Toyota/Lexus /watch/cWkMbi4J3gsJM - Causes of low compression - no start from a stuck closed IAC (part 2) - Toyota/Lexus /watch/sje7ciSY1c9Y7 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.

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