2002 Toyota Solara engine light

Many times this is caused by the gas cap being loose; make sure the cap is tight after your next fill up. If it remains on for a couple of days, go by Advance Auto or someone like that and have them plug in a tool to get the engine code. Research on the code should give an idea of what may be wrong and if it is within your level of experience to perform a do-it-yourself repair.

Be aware there are more than one O2 sensors and there has been some software issues relative to the tolerances the computer will accept. (There is a sensor before the converter(s) and another after. The intent is to control gas/air mixture, but if the computer senses the difference between the two remain too high then it turns on the light). If your code states bank 1 sensor out of tolerance then this could be the issue. (This car also has 2 converters so it is quite $$ to replace)