Check engine light

I have a 1996 Infiniti G20 with the check engine light on. I have checked all the fluids and everything seems to be okay. Anyone know a possibility? Thanks

Any of the engine sensors could be in need of looking at ..... Theres about 10 of those .... It needs to go on a diagnostic machine to tell you whats what ...... Then the thing needs resetting ........ Go see Mr Dealer I'm afraid

Or a Local garage that has the software, pends on the garage really