Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
I just tried to test a Mercedes Sprinter EGR solenoid using the book. I’ve watched videos of Paul safely grounding EGR’s and identifying which is the control wire by unplugging it. However when I unplug this EGR both motor wires jump from 12v to low voltage. Making it hard for me to determine which one is the control wire and to safely control the solenoid. Would love some help on how to manually control a PWM solenoid
