Many small problems can be neglected or easily fixed on my Alfa, but there is one which necessitates proper attention. Namely, when I start the car and press the gas pedal, I get a poor response from the car. Then this continues. As if there is no direct link between the gas pedal and the engine. Again, when I am driving in the fourth gear, for example, at 2-3,000 revs, and try all of a sudden to change lanes or overtake somebody, I have no power (and this can be very !!!!ing dangerous, as you know) - the gas pedal only falls trough and its an extremely disappointing flaw. But the fact is, this does not happen all the time (although its hard to tell when it really happens and when not - maybe when the car is well warmed up I am spared the misery). Now, I took the car to a mechanic. He said the variator had got stuck at HIGH revs. But of course, he would need to change the variator, and the timing belt (or whatever is the correct name in English), and some other things (which you, as knowledgeable people, are familiar with more than I am) - which would mean I would have to give a lot of money (for my conditions). Honestly, I would do that if my car would start to behave like real Alfa - smooth driving, RESPONSIVE to my commands, etc. But how am I to know this is not just the mechanic's set-up? On the other hand, when reading some threads here, I figured out that some of you mention lambda sensor in the similar context. God have mercy on my soul and help me extract the knowledge and right answer from you.
PS There is no ratlling noise which is notorious for faulty variators.