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(Chapter 3) Transistors, Solenoids, Computer Controlled Output Testing
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This is a great review of section 3 material in my book, specifically about testing a ground side switched solenoid.
View More About This Video: How to test a purge solenoid (Mazda P0443, P0455)
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During this diagnosis of an EGR trouble code on this Impala, I have the opportunity to go into detail about computer controlled solenoids, duty cycle, and how they relate to valve position.
View More About This Video: EGR Closed Performance P1404 with new EGR valve installed (GM)
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On this system the intake valve lift is varied by two different cam lobes. A low lift lobe and a high lift lobe.
View More About This Video: How to test Intake Valve Control Solenoids (codes P0028, P0082) - Subaru
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2002 Chevy Silverado 4.8L with a P0449 EVAP system Vent Control Circuit Low trouble code.
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How to test a computer transistor driver with a basic test light.
View More About This Video: How to test a computer transistor driver (with a scan tool)