Remember, the code reader won't tell you how to fix the check engine light—the code it reads just directs you to the fault. From there, unleash your mechanical prowess and discover the cause!

Consumer Reports explains what the check engine light means and what to do when you see it: how to tell if your car has a loose gas cap—or a serious engine problem.

Check Engine Light Code Reader Gotech Scanner Lead© John Hsu,MotorTrend Staff Limited Edition of Lowrider Magazine Dedicated to the Women Shaping the Culture© Provided by MotorTrend Group ...

I have a 2012 Kia Soul with 72,000 kilometres on the odometer, and the check-engine light is on for fuel lean at high load. I had the fuel system cleaned, a new oxygen sensor and fuel lines ...