Well all fingers crossed the problem may be solved, the base idle was way out, and I’m guessing because the car came from a flat part of the UK, unlike the steep hills here i. Cornwall, the stopping on over run had never been an issue.
Two test drives now, tonight’s was particularly pleasurable in the evening sun, and all seems good.
Thanks for all the comments everyone, I genuinely have enjoyed the learning process this opportunity gave me.
Glad to hear things are looking "normal". So what was it idling at, and what procedure did you follow to reset the base idle?
