Having problems with your 2001 Hyundai Elantra ?
I have a hyundai elantra 2003 and the engine ligth is on,
\015 The engine ligth is on but, the car run fine and the engine is working smooth\015
When the check engine light comes on it is often to alert you to something not running correctly. you may not always be able to recognize the issue for examble a common reason the check engine light comes on is the O2 sensor is going bad, may not be your issue but is very common. in that case your car will continue to run but not at its most efficient level. the amount of gas used is controled partally by the O2 sensor correctly recognizing how much oxygen is in your exhaust you may get worse gas milage but not by much and most people would not know to change sensor except if the dash light came on. you should have it checked, if the light flashes it is an emergency stop the car and call a service station to verify the severity. having the ligh stay on is not usually any reason for quick action just a warning.
Repair Help & Product Troubleshooting for 2001 Hyundai Elantra
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