So I have check engine light on.....

but the real problem is that its on for couple days and goes off, and on and off over and over

and then check engine light didnt come on for few months untill few days ago

also my trip A,B meter is resetting (does not occur at the same time when engine light on and off)

I do not feel any difference in performance wise.

I did research but couldnt find similar situation, and wondered if anyone here have any idea what it is.

its 2009 rx8 touring, stock.

thanks in adv