For a few weeks now I have been having the problem of my car idling rough (I can feel it shaking through the seat) during cold starts and even when its warm and sitting at a light. I thought maybe it was a bad tank of gas, so I nearly drained her (had 80kms left) and filled her up again with 91 (highest we have in town). Issue is still there though.
What happens is when it's cold it really shakes and once the revs drop and idles normally it still shakes but not as bad. In traffic, idling it shakes enough to notice it. Sat in my mom's car (2012 GTI) and hers idles nicely (same gas station I use) from cold start to normal idling. Even my fathers 2011 Golf 2.5L idles more smoothly then mine.
I tried logging some info on it, and only thing noticeable was the knock sensor voltage on cylinder #1 was higher then the others (0.9V vs. 0.6V) and right off the bat it counted 4 misfires in cylinder #1. But I am unsure if the misfire counts are actual misfires or just from the car starting. After a minute or so the misfire counts went away. Any idea what I should be logging? Or should I just take it to my dealer and have them look at it?
Thanks in advance for the advice!
What happens is when it's cold it really shakes and once the revs drop and idles normally it still shakes but not as bad. In traffic, idling it shakes enough to notice it. Sat in my mom's car (2012 GTI) and hers idles nicely (same gas station I use) from cold start to normal idling. Even my fathers 2011 Golf 2.5L idles more smoothly then mine.
I tried logging some info on it, and only thing noticeable was the knock sensor voltage on cylinder #1 was higher then the others (0.9V vs. 0.6V) and right off the bat it counted 4 misfires in cylinder #1. But I am unsure if the misfire counts are actual misfires or just from the car starting. After a minute or so the misfire counts went away. Any idea what I should be logging? Or should I just take it to my dealer and have them look at it?
Thanks in advance for the advice!