How to test an electronic EGR valve (GM P1406 case study)
For more on Engine Performance Diagnostics go to my website at
In this video I show another variable when it come to testing this type of
EGR valve. This video can also be used to support Sections 3 and 7 in my
EGR valve cleaning WITHOUT DISMANTLING - Cleaner kit test Before/After
How to clean an EGR valve without dismantling with a Bardahl EGR valve
cleaner kit. Test of the effectiveness of the kit by visually checking the
valve before and after cleaning. Cleaning with removing/refitting of this
valve here: http://youtu.be/o6k99PvANew
Auto, automobile, car, vehicle maintenance tools parts accessories engine
mechanics do-it-yourself diy tutorial tuto
This video does not constitute or replace a real specialized technical
manual, and was only made for convenience and educational purposes.
"TutoBuild Eng" makes no warranties of any kind and accepts no liability.
"TutoBuild Eng" cannot be held responsible for any damage caused to devices
or persons using information contained in this video. The use of the
information contained in this video is at your own risk.
GM EGR Valve Testing (P1404 Case Study)
Use this video to support Sections 3 (Transistor Drivers and Output
Solenoids), 7 (Potentiometers) and part of 20 (Idle Speed Controls) in my
eBook available at www.scannerdanner.com.
How to test a GM linear EGR valve. What is duty cycle and how does it
relate to valve position? What is the learned EGR valve closed position and
why is it needed?