{youtube}ZEYMg-7J1dg|615|345|0{/youtube}
Sorry for shouting in this video. I was teaching in a large room full of people and needed them to hear me over the engine. This was an early video for me. I've gotten better. The tests in this video can be applied to any ground side controlled solenoid. You must know whether the solenoid being tested is ground or power side controlled. (Chapter 3 material in my Engine Performance Diagnostics book.)
To determine how the solenoid is being controlled watch this video:
How to test a computer controlled solenoid (power/ground side identification) https://youtu.be/kQz3g4HIWgs
Engine Performance Diagnostics chapter 3 pages 8-11
- how to "be the computer" and energize the solenoid
- how to test for solenoid function
- EGR position sensor (EVP) signal test
- EGR flow test by watching the reaction of the exhaust gas temperature sensor (EGT)
- how to force vacuum to the EGR valve
- how to test for plugged EGR passages.
- scan tool
- back-probing tools
- incandescent test light
end faq
{accordionfaq faqid=accordion15 faqclass="dotluvfaq help2 aligncenter headerbackground headerborder contentbackground contentborder round7" active=item0}Playlist
(Chapter 3) Transistors, Solenoids, Computer Controlled Output Testing
Related videos:
How to test a computer controlled solenoid (energizing the circuit manually) :
{youtube}ZEYMg-7J1dg|615|345|0{/youtube}
How to test a computer transistor driver (without a scan tool):
{youtube}8FnYllf5D9E|615|345|0{/youtube}
How to test a computer transistor driver (using a scan tool):
{youtube}MOSH8XLKrLc|615|345|0{/youtube}
How to test a computer controlled solenoid (power/ground side identification) :
{youtube}kQz3g4HIWgs|615|345|0{/youtube}
end faq
{accordionfaq faqid=accordion3 faqclass="darkhivefaq defaulticon headerbackground headerborder contentbackground contentborder round5" active=item0}
For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available 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. 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!