It is then pushed to the rectum which is the last part of the large intestine, then out the anus and into your toilet. The digestive system refers to the system from the mouth to the  bowels. It is the system that the body used to draw nutrients from  food and to eliminate waste.
1996 and newer vehicles CANNOT PASS emissions testing with the âCheck Engineâ light illuminated. Determining what has caused the âCheck Engineâ light to illuminate, and repairing the problem is a job for trained professionals equipped with the proper tools to diagnose and repair the problem.
The correct mixture of air and fuel is necessary to maximize the engine's performance. A bad mass air flow sensor produces an error code in the car's on-board computer and will cause the check engine light to illuminate. This problem is easily diagnosed by a mechanic with computer testing equipment or by the car's owner using a digital scanner available for rent at auto parts stores.