What are the consequences of increasing horsepower in a diesel direct injection engine?

[DeJulianna]

If the horsepower of a diesel direct injection engine is increased, it can lead to excessive exhaust emissions and increased fuel consumption. Below is an introduction to increasing horsepower in a diesel direct injection engine: 1. The ECU of a car engine: Car engines are equipped with an ECU, which is referred to as the brain of the engine. The ECU controls the operation of the engine. There are many sensors around the car's engine that can collect data and feed it back to the ECU. After processing, the ECU uses actuators to control the engine's operation. Without the ECU, the engine cannot run. 2. Increasing horsepower: Increasing horsepower essentially involves reprogramming, which means modifying the control program in the ECU. This can alter the engine's power output. However, after reprogramming, while horsepower increases, the vehicle's exhaust emissions and fuel consumption will also rise. Using the original factory program ensures a balance between power, fuel economy, and engine lifespan.