Like to say hi to everyone as this is my first post, a little long but here goes... ok so my 06 plate 1.8 civic was losing some power, checked for codes and said TPS so I changed with a 2nd hand part, after fitting it the car revs up and down whist at idle, when I put my foot on the accelerator and let it off it hunts and then sits at around 2000rpms. Check codes and said the pedal sensor which I then changed and revs still the same, so decided to get a TPS and pedal sensor off the same car. So no difference, checked for vacuum leaks and seem to have none, all spark plugs ok. Tried the re lean 3000rpm etc but no change, decided to take to Honda for a relearn and they could not do it as hunting idle. I did snap the end of the air filter casing but I wouldn’t have thought that would cause a leak etc, so still have a car that hunting on idle, revs up to 2000rpm. So any help would be a great help.