Will Installing an OBD Fuel Saver Damage the Car?

[JamesFitz]

Installing an OBD fuel saver will not cause any damage to the car. An OBD fuel saver is a power and fuel optimization device (based on OBD protocol) that can adjust the vehicle according to the driver's habits, remap the car's ECU, and self-regulate. It not only enhances and optimizes the car's engine and power, giving the driver a refreshing new feel, but also improves fuel efficiency, significantly aiding in reducing the car's fuel consumption. Overall, it can save a small amount of fuel, but the effect is certainly not as much as advertised by sellers. Moreover, whether it saves fuel or not depends on the car model, as some models are completely immune to OBD fuel savers. Since modern cars are largely electronically controlled, parameters such as ignition timing, fuel injection volume, and mixture concentration in the engine are all controlled by the engine ECU's program.