Why is fuel consumption higher after replacing the fuel pump?
1 Answers
Fuel consumption has no relation to the fuel pump. Check if there are any fault codes in the engine's electronic control system and whether the fuel pump's working pressure is too high. Below is additional information: Introduction to fuel pumps: A fuel pump is a lightweight and compact pump. A design has been proposed featuring a fuel pump with a housing made of aluminum-containing material and a movable molded part housed within it. This movable part is at least partially made of a sinterable, iron-based alloy material containing austenite, with a thermal expansion coefficient at least 60% of that of the housing. Classification of fuel pumps: Fuel pumps can be categorized mechanically into injection type, self-priming type, and oil type. The injection pump, also known as the high-pressure fuel pump, is commonly used in automotive diesel engines. It is a crucial component of the fuel system, often referred to as the "heart" of the diesel engine. Like centrifugal pumps, self-priming pumps require the pump casing and suction pipe to be filled with water before startup. The oil pump is highly wear-resistant and durable, boasting a very long service life.