My wifes 2005 Camry has been displayning the light for FIVE years. When I go for inspection... I PULL the battery cable the night before. Total Memory Loss. The next day the car passes Inspection. A day or two later the light comes ON again. I bought a very nice scanner and scanned. The problem is one of a FEW
Possible problems related to .."Evaperative Emmisions."
The car runs fine and the gas mileage is fine. Just my experience..
NB