(See How Catalytic Converters Work for more details.). Controlling the engine is the most processor-intensive job on your car, and the engine control unit (ECU) is the most powerful computer on most cars.
â¢ Accidental poisoning is one of the leading causes of GI ulcer disease. This can be from plants (for example, toxic mushrooms, castor beans, or sago palm), pesticide or rodenticide toxicity, chemical poisoning (often with ethylene glycol or phenol), or heavy metal poisoning involving zinc, iron, or arsenic.
Causes of upper GI bleeding. Peptic ulcers are a common cause of GI bleeding. These ulcers are open sores that develop in the lining of your stomach or duodenum. An infection from H. pylori bacteria usually causes peptic ulcers. Also, enlarged veins in your esophagus can tear and bleed as a result of a condition called esophageal varices. Tears in the walls of your esophagus can also cause GI bleeding. This condition is known as Mallory-Weiss syndrome. Causes of lower GI bleeding. One of the most common causes of lower GI bleeding is colitis, which occurs when your colon becomes inflamed. Colitis has multiple causes, including: infection. food poisoning; parasites; Crohnâs disease or ulcerative colitis; reduced blood flow in the colon