Hi guys, my car has a rough idle when the aircon is turned off. I know everyone says it is nothing to worry about but I find it annoying and it is getting more rough as time goes on. It is as if the engine kicks every now and again. So today I thought I would unplug the MAF to see if the engine runs smooth without it and that will then help me to diagnose the rough idle as a bad maf. So I unplugged it and fired up the engine, as expected the CEL light came on but I wasn't expecting the revs to jump around so much, I took a video of the rev needle so you can all see it below, you will see that every now and again the revs jump and drop, is this supposed to happen when you unplug the MAF?
P.S. In the video I don't touch the accelerator pedal at all. It normally idles at 650rpm with the MAF plugged in.