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.
Part 1 of 1: Getting your vehicle ready for an emissions test. Step 1: Clear the Check Engine Light if it is on. The Check Engine Light is almost entirely related to your emissions system. If this particular warning light is on you will need to the get the vehicle inspected and repaired before taking it in for a smog test. In almost all circumstances, the vehicle will fail if the Check Engine Light is illuminated.