I had infrequent hesitatation when getting back on the throttle after idle, about once every drive. i.e. you pull up to give way, and the car starts to idle roughly. give it a little pedal and it splutters, threating to stall, but a second later it catches and pulls normally. had my car dyno tuned and serviced, they found the air filters almost completely clogged, so they replaced them. Now it seems fixed, the car idles steady at all times. Admittedly I had good sparks put in and some minor work on the coolant system - but could have the air filters been at fault here, or would the dyno-tune have made the difference??
