What does a car IV bag clean?

[McLilah]

Car IV bag is a non-disassembly cleaning method, mainly used to clean the intake system, fuel system, and three-way catalytic system. The advantage of the car IV bag cleaning method is that it causes less damage to mechanical components. Detailed introduction is as follows: 1. The intake system consists of an air filter, air flow meter, intake pressure sensor, throttle body, auxiliary air valve, idle control valve, resonance chamber, power chamber, intake manifold, etc.; 2. The fuel system is generally composed of a fuel pump, fuel filter, fuel injector, etc., and its function is to ensure the fuel flow required by the engine under various working conditions and states; 3. The three-way catalytic system refers to the catalytic process that converts harmful gases such as CO, HC, and NOx emitted from automobile exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction. It mainly uses a three-way catalytic converter. The carrier component of the three-way catalytic converter is a porous ceramic material installed in a specially designed exhaust pipe. It is called a carrier because it does not participate in the catalytic reaction itself, but is covered with a layer of precious metals such as platinum, rhodium, palladium, and rare earth coatings. It is the most important external purification device installed in the automobile exhaust system.

[VanAnthony]

Last time during the maintenance at the 4S shop, the technician recommended an engine carbon cleaning service, which involves injecting cleaning agents into the engine using specialized equipment. It mainly removes the black carbon deposits inside the engine, especially in areas prone to clogging like the throttle body and fuel injectors. Excessive carbon buildup can make the car feel heavier on acceleration, increase fuel consumption, and reduce power. After the cleaning, you can noticeably feel the car running smoother. However, the effectiveness depends on the vehicle's condition—older cars or those frequently driven in urban areas show more obvious improvements. Don't be fooled into doing it too frequently; generally, cleaning every 20,000 to 30,000 kilometers is sufficient.

[McKhloe]

Engine carbon cleaning via IV drip is a common maintenance method. By connecting to the intake manifold, chemical cleaners are atomized and introduced into the combustion chamber to dissolve stubborn carbon deposits on piston tops, valve backs, and fuel injectors. This is particularly effective for improving cold start vibrations and eliminating knocking sounds. The principle involves using active ingredients in the cleaner to thermally decompose carbon deposits, which are then expelled with the exhaust. It's important to have this procedure performed by professionals, as substandard cleaners may damage the catalytic converter. Typically, this service isn't necessary for vehicles under 50,000 kilometers.

[LaLogan]

Simply put, it's a maintenance procedure to clean sludge and carbon deposits inside the engine. Carbon deposits are like 'blood clots' in the engine, accumulating in areas such as the intake tract and fuel injectors, affecting gasoline atomization. During the cleaning process, the cleaning agent circulates through the running engine to break down these deposits. The most noticeable effects afterward are quicker throttle response and a roughly 5% reduction in fuel consumption. However, don't expect it to cure all issues—vehicles with severe oil burning must address the root problem first.