What is the reason for the sudden increase in fuel consumption display?

[McJace]

The sudden increase may be due to problems with the spark plugs or excessive carbon deposits in the engine. Here are the relevant explanations: 1. Spark plugs: The spark plug is an important component of the gasoline engine ignition system. It introduces high voltage electricity into the combustion chamber and causes it to jump across the electrode gap to produce a spark, thereby igniting the combustible mixture in the cylinder. It mainly consists of a terminal nut, insulator, terminal stud, center electrode, side electrode, and shell. 2. Carbon deposits: Engine carbon deposits are a coking-like substance produced by unsaturated olefins and gums in the fuel under high temperature conditions during engine operation.