yes you can check for continuity of the glow plug installed...by using the Rx1 scale on ohms...one lead to the ceter post of the glow plug..make sure you don't touch the sides of the plug...the other lead to the engine case...should show some resistance as your reading through the coil of the glow plug...not always accurate as the coil can open and short to case reducing the resistance of the plug and its heat...if your open the plug is bad....
if you have the standard engine with your PTS it's an evo.......vibration from taxing around can effect the mixture settings on those engines....there is a blue lock that will move around....
It would be best to wait till you get with your instructor to show you how to remove it