(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.
Ciguatera poisoning may cause gastrointestinal, cardiovascular, neurologic, and neuropsychiatric illness. 1  The first symptoms usually develop within 3â6 hours after eating contaminated fish but may be delayed for up to 30 hours. Symptoms include: 2  Gastrointestinal: diarrhea, nausea, vomiting, and abdominal pain.