Pros and Cons of TBI (Throttle Body Fuel Injection)

The throttle body is associated with automotive engines equipped with fuel injection system. The throttle body is the system that controls the volume of air entering the engine. The throttle body works in proportion to the pressure exerted on the accelerator pedal by the driver.

The throttle body injection system (TBI) consists of two parts, namely, the throttle body and the fuel body. The fuel body supplies the fuel, while the throttle body controls the air supply. In this article, we'll discuss the pros and cons of TBI.

The pros

Less expensive

• TBI systems are available in several models - you can choose one according to your budget. The cost of manufacture is low, making it priced at an affordable level for customers. Thus, TBI is less expensive and affordable.

Easy to clean and maintain

• Compared to port injection, TBI is easier to spot any problem in the system. The issues in TBI system are not that complex when the injectors are obstructed because of dirt, debris and other contaminants.

Improves fuel metering

• Fuel metering involves fixing the amount of fuel required and sending it to the engine. In old vehicles, mechanical metering was used. However, today in most vehicles, electronic metering is used. In TBI, fuel metering is better than the one used in carburetor based vehicles.

Improves performance and fuel economy

• TBI easily yields higher output in the form of more horsepower, without having the need of complete servicing of the engine.

Can be serviced easily

• You can get your TBS fitted vehicle serviced at a servicing station close to your locality. As TBI is one of the most popular injection systems, you can find professionals easily.

The cons

No equal distribution of fuel

• TBI is likely to have issues with respect to the fuel delivery system. It may cause fuel distribution that is not uniform. Uniform and uninterrupted fuel supply is essential for the optimal function of the fuel delivery system.

Higher condensation and fuel puddle

• Another disadvantage of TBI is that the manifold cools faster. This leads fuel to puddle and condense in the interior of the manifold. The fuel is more likely to condense, because it traverses longer from the throttle body to the combustion chamber, and cause fuel puddles. This results in obstruction of flow of correct amount of fuel.

Thus, there are a few pros and cons of TBI. However, the pros predominate. TBI may be opted considering the pros like lower in cost leading to improvement in fuel metering, etc.