What causes high CO (carbon monoxide)?
High CO is caused by a rich air/fuel mixture. The air fuel ratio should be 14.7 parts air to to 1 part fuel. Problems that can cause a rich mixture include: • Problems with the feedback system (the system that regulates the fuel being added to the engine based on the amount of oxygen in the exhaust). • Problems with a computer sensor such as the coolant temperature sensor, air flow meter, MAP sensor, etc.. • Problems with the fuel pressure. Fuel pressure that is too high can cause a rich mixture. What causes high CO2 (carbon dioxide)? High CO2 is the product of a good running engine. The better your engine runs, the more CO2 it produces. The only way to reduce CO2 emissions is to buy a fuel efficient car. The bigger your gas guzzler, the more CO2 it makes. This is what’s so sad about the recent SUV trend. In addition to depleting the worlds oil reserves, and putting our country in a position where “we will go to war to protect our oil supply”, the trend of building increasingly ineffic
