The coronary arteries regulate the supply of blood to your heart muscle depending on how much oxygen your heart needs at the time, as indicated by: 1  The number of times your heart beats per minute (heart rate). 2  Your blood pressure. 3  The force of your heart's contractions.  The thickness of your heart muscle.
When your car's Check Engine light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap.
There is one light we don't like seeing in our cars. The Check engine warning light comes on when there is a problem with your engine, transmission or one of the emission control systems. It's an inconvenience, but it can be solved. You may have to visit your dealer or a mechanic to have your car checked out.