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.
1 The light may not be on the next time you drive, or it may stay on for several trips before it goes out. 2  If it stays on you should schedule an appointment with your shop. 3  Light flashing â a flashing check engine light indicates there is a fault that can harm one or more of the components on your vehicle.