How long does it take for fuel consumption to return to normal after carbon deposit cleaning?
2 Answers
After cleaning the throttle valve carbon deposits, as long as it is properly matched, the fuel consumption will return to normal after driving about 100 kilometers. Below is the relevant introduction: 1. Throttle valve function: The throttle valve is a controllable valve that regulates air intake into the engine. The air mixes with gasoline in the intake manifold to form a combustible mixture, which then burns to generate power. It connects the air filter at the top and the engine block at the bottom, often referred to as the 'throat' of the car engine. 2. Throttle valve impact: The throttle valve is one of the most critical components in modern fuel-injected engine systems. Its upper part connects to the air filter, and the lower part connects to the engine block, serving as the engine's throat. The responsiveness of acceleration is closely related to the cleanliness of the throttle valve. Cleaning the throttle valve can reduce fuel consumption and make the engine more agile and powerful. Whether the throttle valve should be removed for cleaning is also a frequently discussed topic among car owners.
I've been driving for almost twenty years, and every time after cleaning the carbon deposits, the fuel consumption always takes some time to stabilize. Last time I went for cleaning, the mechanic told me to drive about a hundred kilometers to let the car's computer readjust the fuel injection. In the first few days, I felt like the fuel gauge was dropping quickly, probably because the engine was running smoother after the carbon cleaning but hadn't been calibrated properly. After a week of highway driving, the fuel consumption gradually dropped to around 7L, compared to the previous 9L. A reminder: after cleaning, don't rush to step on the accelerator aggressively; drive gently for a few days to help the system stabilize. If the fuel consumption hasn't dropped after a week, you might need to check other issues, like dirty spark plugs or throttle body. In any case, be patient and just drive normally.
