This week’s discourse dwells on the operations of the engine intake, likely symptoms when not performing optimally, and it’s maintenance.

The intake system requires two basic elements to function – oxygen and fuel, through tubes and valves which primarily guide the oxygen and fuel into the cylinder, where  pistons compresses the mixture to be ignited. The resulting explosive force pushes the piston down, forcing the crankshaft to rotate and giving the driver mechanical force to move the vehicle, as applied in all internal combustion engines.

In other words, the system that allows air and fuel into the engine is known as the intake system. This consists of the *air filter*, the *intake  manifold*, a *throttle body*, (or carburetor in older engines), and *pressurized fuel injectors*. For this discourse, emphasis is based on the fuel injected system.

*Care and Maintenance*

The basic function of the air intake system in your car is to act as the engine set of, lungs breathing in and filtering the air that circulates throughout. The engine intake utilizes a precise ratio of oxygen and fuel in other to properly combust and ignite. For every 1 gram of fuel, 14.7 grams of air is required ( ratio 1 : 14.7 fuel/air ) When the air to fuel ratio is compromised or when the capacity of air is higher than 14.7,  there is a _lean_ mixture, also when the capacity of air is lower, then a _rich_ mixture is said to occur. Engine misfiring, high fuel consumption are major symptoms of these. The use of a professional scan diagnostic tool will be deployed here where live data streams help detects these variables.
It is especially important to maintain the air intake system of your car prior to the dry seasons because the low moisture in the air creates more dust, dirts and debris for the intake to filter through it.
Most important component to check in the intake system is the air filter. Many people simply replace the filter when it’s dirty. This is okay but dusting or  using a vacuum cleaner to force out the dust before refitting into it’s housing will go a long way to improve the performance of your vehicle.
Also, the MAF sensor (Mass – Air Flow sensor) – located on top of the long black tube from the air filter to the throttle body. It’s function is to monitor the amount and quality of air going into the intake system. These areas need period checks and are expected to be carried out as recommended in the car owner’s manual, based on the usage of the vehicle. The use of a special solvent called the “carb cleaner” in spraying the throttle body, injectors and the MAF sensor using special techniques helps to improve it’s performance as it’s wipes away carbon build ups around the intake system. The use of injector cleaners liquid once a while also goes a long way as the tiny jets of the injector nozzles don’t get clogged. 
So, next time you experience a higher rate of fuel consumption, the intake system or exhaust system should be the first point of call before looking into other areas. 
The Exhaust system will be discussed next but that would be after the Engine Fuel system has been explained.

Written by Adeniyi Balogun


By floramichaels

Hi, I am Flora Ngo-Martins. I love writing and I am passionate about fashion, stories, news and food. Sometimes I get a little bit serious but that's alright, I can also be mischievous. I also like to analyse stuffs people do and sometimes judge.*wink* Most of all, I love to influence the lives of people positively and tell people's stories from a totally different perspective. Feel free to contact me if you have any suggestions or....

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