Why check engine bulb indicates - Cars & Trucks

The check engine bulb is part of the vehicle's onboard diagnostic system. When an issue internally detected within the system, such as spark plugs, evaporative issues or other reasons the check engine light will start to illuminate.
Some Tips You Should Do If The Check Engine Light Is On:
-Check Your Gas Cap.
-Reduce Car Speed And Load.
-Look for a serious problem that requires urgent attention.
Has your car checked as soon as possible to prevent expensive damage? If a machine giving you an indication that means there is some issue within your vehicle. So it is necessary to identify the problem by your self by auto mechanics. sometimes it may be a serious issue but not always. But if you don't know anything about the check engine light how would you fix it.

There is error code stored in your cars computer.It has to be scanned to retrieve the codes stored in it.I suggest you to click the help links shown below :----Check Engine Light On car? http://schematicsdiagram.blogspot.com/2011/06/check-engine-light-on-car.html
--------------After getting car washed, check engine light is ON and key less entry not working, tried reprogramming. Also car shows fuel pressure? http://schematicsdiagram.blogspot.com/2011/12/after-getting-car-washedcheck-engine.html
------------After replacing throttle body the Check engine light starts blinking? http://technoanswers.blogspot.com/2012/01/after-replacing-throttle-body-check.html
-----------How to Read Codes from Check Engine Light? http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html
-------------Check engine light with codes P2195 and P2197? http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html
------------Car jerks while going uphill and Check engine light is ON? http://schematicsdiagram.blogspot.com/2011/12/car-jerks-while-going-uphill-and-check.html
-----------Vehicle smog test failed Due to NO MIL/check engine light? http://schematicsdiagram.blogspot.com/2011/12/vehicle-smog-test-failed-due-to-no.html
-----------This will help.Thanks.