Can Santana 3000 change the throttle to save fuel in 2004?

The increase in fuel consumption is not simply caused by the throttle. There are many reasons, such as too much carbon deposit in the engine, too rich mixed gas, engine oil combustion, spark plugs, fuel nozzles, throttle valves, cylinder pipelines, air filters, oxygen sensors, three-way catalysis, etc., which may all lead to increased fuel consumption. After all, the car in 2004 is an old car. If we can guarantee to open 9- 1 1 oil in urban areas,