I love my Lupo, but in a year it has had so many problems, certainly due to poor maintenance.
Yesterday another problem. With the engine cold, at the traffic lights, the idling started to be unstable, muttering quite a bit, until the car turned off. I try to restar the engine, fortunately it starts, I take a ride and I find an isolated place, at this point I accelerate several times very strong to see if it stabilizes. Everything looks okay, I do 10km and no other problem. The same joke had already done it two months ago, the mechanic told me that the throttle body electronics needs to realign and after a few km the defect disappears. I clean the throttle body by myself, which I did again yesterday. I get in panic because the car in May was totally blocked due to a fault with the G28 sensor. I have changed other sensors by myself.
Could the EGR valve be cleaned? Thanks and a have a nice day.