Got a 2002 Malibu that needs emission testing by the end of the month. Plugged in an OBD tester a couple of weeks ago but it wasn't ready. Plugged it in again today and its still not ready. So I went for a drive. Put on 130KM, mostly highway but did some stop and go. Up and down some hills. Stopped, took a break, then repeated. Still not ready.
Car mostly sits or my parents do short errands with it. Put approx 600 km on it in the past 3 years. Prior to that the drive it a lot. To the amount of 220,000km.