quite a number of faults can cause the check engine light to come on. You'll need to borrow, rent or buy a code scanner to find out what the computer has detected.
Autozone, Checker Auto Parts, Schucks Auto Parts, Kragen Auto Parts, O'Reilly Auto Parts or any of the Murray Discount Auto Parts stores will connect a scanner to your OBD recepticle under the dash for free and read out the code you need.. they will also reset the computer, but the code will return if you don't repair the defected item..
Your mom.
your oxygensensor is bad ,its screwed in to your exhaust manifold, about 30.00
Check your engine. Check your fluid levels and add if needed.
There are dozens and dozens of causes for the check engine light to stay on. You need to have the computer checked for codes to know possible causes.
The engine is overheating. The check engine light is not on because you have no problem with the emissions system which this light monitors.
Check your gas cap.....My check Engine light always comes on if it is loose or not on at all.
A lot of parts stores will check it for free.
Your bad muffler might be part of the reason your check engine light comes on. Usually, your bad muffler causes something else to go wrong and that causes your check engine light to come on. Problems cascade.
Check your gas cap. Make sure the seal is still good. This will cause the check engine light to stay on and is an easy fix.
The check engine light on a 2003 Honda Accord will be triggered when something on the engine is malfunctioning. To rid the check engine a light the ECU will need to be reset.
The Check Engine Light (CEL) lights up when the Engine Control Module (ECM) detects a problem related to emissions or performance.
There are pages and pages of causes for a check engine light. You need to have it checked for codes with a scanner to know what to diagnose. After the repair you can clear the code with a scanner.