Thanks Dan,

Is there any real problem to just keep driving car with check engine light on appart from not knowing if something else goes wrong?

I don't see any problem with car, except maybe fuel consumption (I drive it parctically 99% of time just short town distances, and it's about 15 L/100km) but then I don't know how much it suppose to be...
Car has only 105,000 kms, and looks perfectly in order to me, so i have no plans to do any work on it, and I don't really like to start fixing something that's not broken..

Dragan