Don’t have a code reader. The revs surging is getting more noticeable.
I’m going to check the induction from the air cleaner to the throttle body sometime next week, weather permitting, gone are the days when I could get under the bonnet any weather.
I’m favouring a cleaning of the throttle body to start with.
I’ve just watched a video of a man changing the plugs on an IS 250 and clean the throttle body by taking it off. I was under the impression that they had to be recalibrated once disturbed. Anyone know differently, can they be removed, cleaned and replaced without issue?