i bought the honda accord 2003 drives fine but his check engine light was on what it could be
Feb 1, 2013 at 11:00 AM
CARADIODOC
✓Experienced Mechanic
34,393 POSTS
There's well over 1000 diagnostic fault codes that can be set, and about half of them result in the Check Engine light turning on. Many auto parts stores will read the codes for you for free. That will indicate the circuit or system that needs further diagnosis.