Today, oil products, especially fuel, are becoming more expensive before our eyes, and therefore an increase for any motorist is the worst dream. Often, the reasons for the appearance of such a phenomenon on a 16-valve VAZ-2112 are quite simple and understandable. Although, not all motorists know them and can fix the malfunction with their own hands.
A dirty throttle valve can be perfectly cleaned with VD-40
Increased engine temperature VAZ-2112
Defective catalyst
In this case, the boomerang effect acts, the better the catalyst works, the more “standard” fuel consumption. It is because of the pollution and destruction of this important element that a rich mixture is obtained, which subsequently has the effect of increasing consumption. Therefore, to eliminate the problem, you will need to examine the node and determine its condition. If necessary.
A faulty catalyst can be seen visually. Symptoms are burnout or destruction.
Air filter
A dirty air filter is the last reason for an increase in air flow. A separate word should be mentioned. This element performs the function of filtering the incoming air into the fuel mixture. So, with its dirty condition, the effect of "air starvation" and malfunction of the mass air flow sensor may occur. As a result, incorrect mixture formation occurs, which will entail an increase in consumption. If necessary, it is worth replacing this element with a new one.
Dirty air filter removed from the vehicle
conclusions
There are many reasons for the increased fuel consumption on a 16-valve VAZ-2112 engine. So, finding the causes and eliminating them can take from several hours to several days. If the motorist is not sure that he is able to cope with this problem, then it is recommended to contact a car service, where they will do everything quickly and efficiently.
