My 2002 Camry's Engine check suddenly turns on while i was driving. Did not see anything wrong with the performance. Tried to unplug battery for 5 minutes, lights went off. But light turned on again after two days.
What should i do ? Thanks a lot!

There is a code in the computer.(these don't reset by disconnecting the battery)If it is still under warranty take it to the dealer.If not Autozone will usually read them for free.If you try to fuel it while the engine is running this will also set a code.

I definitely recommend having the code read, if not making a trip to the dealer. It could be anything from the gas cap not being on tight enough to an emissions problem or worse, a fuel or oil flow issue. Good luck...

Take care,
Jerry

thank you guys, i send it to the dealer and the code says i have to change the Canister VSV. Now the light is off.