Mitsubishi Repair: Check engine light on only at normal temp, engine temp, gas tank

Question
I have 4g93 sohc. Each morning, start up the engine as usual, no check engine light on until the engine temp has risen to normal level. The engine performance n everything else is fine. Sometimes while the car is moving, the light would go off and the light came back on whenever I stop the car and it will not go off.I would say is the sensors went faulty? Please advise.

Answer
Teh,
This is most likely a sensor tied to the emissions system.  Sometimes it's as simple as a bad gasket on the gas tank cap.  But there are a number of sensors that measure the emissions output and will trigger check engine light.  The best thing to do is have a mechanic pull the codes from the car's computer when the check engine light is on.  This will help find where locate where the problem could be.
Good luck!