Hmm, 300 rpm is a bit of a drop. If that was my car, I'd be do a search on here about how I check the health of the alternator. That's only a hunch though.
As I said before, better the devil you know...
Cheers guys. I totally understand what you mean about persevering with this GTV as opposed to getting another and possibly unearthing larger issues that require more time and money.
A big factor is its age and mileage. 1997 and almost 133,000m. Factor in it has the usual age related stone-chips and marks here and there. Don't get me wrong, it is very clean for its age and has LOTS of history and bills. If I spend the money needed on getting the cam belt/variator/water pump done, as well as addressing this damn idle issue, the car will probably owe me near £1500. For that money there seem to be quite a few younger GTV's out there with less mileage, that on the surface require nothing major doing. lol I know....are people that
honest with their adds??
I know I'm sounding like an old women over all this. Bloody cars eh..
Re: the alternator. Is that likely to be a contributory factor to the uneven idle or a separate issue that has become apparent
Out of curiosity (and because it's easy) and did that ECU reset thing just before. When I fired her up for the obligatory 15mins, she idled rock steady at 1000rpm for around 8mins. Then, ever so slightly I could hear her trying to rev and sure enough by the end of the 15mins she was up and down between 1400 and 1100 again.
Also, I read through some of the threads regarding variator problems, and one post that jumped out was that if it sounds like a diesel continuously rather than just initially after start up, then it needs addressing asap. Is this true? Mine is like a damn 20yr old taxi all the way from start to finish!!