mechanical out-of-date carburetor. Throttle body was the first to use a computer to control several aspects of the engine. The throttle body way of fuel injection had two fuel injectors mounted on top of the intake, along with several other sensors all being controlled by the engine control module to achieve ideal running conditions, and the most efficiency(“Fuel Injection Columbia” par. 5).
There are several sensors all inputting and outputting information to the engine control module. All of these sensors work in tandem to achieve the best and most efficient running conditions, with both fuel economy and emissions. These sensors include: Oxygen sensors, Throttle position sensor, and Mass air flow sensor. The sensors mentioned are just a few of the sensors inside vehicle. The modern vehicle has upward of a hundred sensors for different parts of a vehicle. These sensors play an large part in fuel injection. Without these sensors, the use of the computer would not feasible. Each sensor plays a different part in achieving full efficiency. The oxygen sensor is a sensor placed within the exhaust system. The purpose of the oxygen sensor is to monitor and input information about what is going on in the exhaust system to the engine control module. Oxygen sensors play a critical part
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Most old vehicles that are being restored, or built up came originally with a carbureted engine, so rather than converting the engine over to fuel injection, the vehicles are just built up with carburetors. However, building an engine with a carburetor is not necessarily the most economical thing to do today. Fuel injection is on almost all vehicles today, and when building a vehicle if it is converted to fuel injection will achieve better fuel economy, as well as eliminate the need for general tuning and maintenance items that come with a carbureted