Hello, I tell you that my Corsican has long since failed to turn it on sometimes. In the cold the revolutions rise and fall trembling the car, after a minute approximately it stabilizes at 1000Rpm. The fact is that I realized that this happens with the lights off only, if I turn on the position it improves the revolutions, but if I turn the low it normalizes ... This happens to me both in summer and winter ... I would appreciate your contribution to some partner, thanks

The IAC valve usually causes this type of instability in the RPM, you can disconnect the harness of the cables, remove the IAC Valve and clean the stem with gasoline and a brush, since they come out with a lot of "black tizne", since dry the gasoline again, reassemble it, then you have to open and close the switch about 4, 5 times (((leaving it open for 10 seconds and then close it))) without turning on the car to adjust the valve by if the rod got to get in or out a little when cleaning it, after that you can start the vehicle normally greetings