by nature of what the JTS is and the initials stand for the fuel system is very high pressure,- have a read through my threads/posts and you will see that I had a JTS with a niggle that actually turned out to be very simple fix costing about £70, - it was a hole in the inlet pipe that caused all sorts of starting and ECU problems including blown fuses and warning codes. However when it was being inspected the guy did say that if it was the fuel rail that would be over £1000 to fix. What I would be asking myself is why the guy is selling it without finding out exactly what the problem is, - the responsibility is on him as the owner of the car to find out what it is so that he can sell it for the best possible price. If there is any uncertainty then I as a buyer would be looking at the worse case and making him an offer, or actually walking away from it. I am thinking about selling my JTS right now, - 56k miles, 2005, needs a 60k service (£240) and a new tyre (£97). My thought process as a seller is to get those 2 things done, new MOT and sell it so that any buyer has piece of mind which I think an Alfa buyer will pay a bit more for.