THERE ARE 100 THINGS THAT CAN TRIGGER THIS LIGHT!!!!!! The "light" isn't the "Fault" or "problem"... there is an underlying failure that triggered it. To say "I have this light too" is to not understand the function of a "Check Engine Warning Light" You need to find out the actual CODE that tripped the light to get at the fault- the dealers love customers that don't ask questions....the sensors don't get 'confused' and if they do, they are defective.