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.
Jan 18, 2014 at 12:01 AM. Q: I had a problem with my car; the check engine light was on. When I went to the repair shop they tested everything out and told me the battery was faulty. They replaced the battery and the check-engine... Q: I had a problem with my car; the check engine light was on. When I went to the repair shop they tested everything out and told me the battery was faulty. They replaced the battery and the check-engine light is off. The problem is that the battery was only a couple of years old.