What are the effects of ECU remapping on a car?

[SanQuinn]

ECU remapping has the following effects on a car: 1. The car will require higher-quality gasoline, and using low-quality fuel may damage the vehicle; 2. Higher temperature requirements, as the engine operates at overclocked speeds after ECU remapping, and without an excellent cooling system, the engine's lifespan may be affected; 3. The 4S shop may refuse warranty service, as vehicles with remapped ECUs can be denied warranty coverage. The principle of ECU remapping: 1. The operation of a car engine is controlled by the car's computer; 2. The ECU controls the engine's air intake, fuel injection, ignition timing, etc., thereby determining the engine's operational efficiency, power, torque, etc.; 3. Information such as air intake, fuel injection, and ignition timing under various engine speeds, loads, and temperatures is recorded in the ECU in the form of a database; 4. The essence of ECU remapping is to modify this database, altering the data that controls the engine, affecting its operation, and achieving the desired effects within the engine's tolerable limits.