I have taken my Carbonio CAI off (selling the car) and refitted the original airbox.
Everything was hunky doory for a few days (although alot quieter and slower) but now the emissions light has come on?
Any suggestions why. The car isn't due a service till decemeber so don't really want to fork out loads of money on it before selling.

Any suggestions why. The car isn't due a service till decemeber so don't really want to fork out loads of money on it before selling.