What are the reasons for insufficient power in gas-powered vehicles?

[JonathanLee]

Here are the specific reasons for insufficient power in gas-powered vehicles: 1. Fuel properties: Gasoline is a liquid fuel, while natural gas is a gaseous fuel. When using gasoline, the volume of liquid gasoline is almost negligible compared to the intake volume. However, when using natural gas as fuel, the volume of the fuel itself occupies a significant proportion of the total intake, resulting in a reduction of air entering the cylinders and a decrease in the volumetric efficiency, which leads to a drop in engine power. 2. Engine design: The anti-knock properties of gasoline limit the compression ratio of gasoline engines, whereas natural gas has excellent anti-knock properties and can be used in engines with higher compression ratios, thereby increasing power. Most natural gas vehicles currently in operation are dual-fuel vehicles, capable of running on both natural gas and gasoline. To accommodate the use of gasoline, the compression ratio of these dual-fuel vehicles is either slightly increased or not increased at all. As a result, the high anti-knock properties of natural gas are not fully utilized, leading to a decrease in engine power.

[ClaireAnn]

I've been driving a natural gas vehicle for about seven or eight years, and the recent lack of power has been really annoying. Usually, it's a problem with the gas supply system; clogged injectors or gas leaks are quite common, leading to insufficient gas supply and a weak engine. Also, the aging pressure reducer can cause unstable gas pressure, making acceleration feel sluggish. Spark plugs have a shorter lifespan compared to gasoline cars, and poor ignition can slow things down. If the air filter gets clogged with dust, reduced air intake also affects combustion efficiency. The ECU settings need regular tuning, especially for modified vehicles. Carbon buildup in the intake or combustion chamber can lower the compression ratio. Every time I take it to the shop for a thorough cleaning, including the filter and injectors, the problem is solved. Regular maintenance is key to preventing small issues from becoming big ones. Also, in cold weather, gas evaporates more slowly, which can reduce power. I suggest owners not overlook routine checks.

[LaLydia]

My gas-powered car is modified, and the lack of power is really frustrating. The reasons are often impurities or minor leaks in the gas pipeline, which affect gas transmission. Aging spark plugs and ignition coils are also common issues, leading to incomplete combustion and weak output. If the pressure reducer isn't functioning properly, it can cause imbalance in regulation. A dirty air filter restricts air intake, disrupting the air-fuel mixture ratio. A faulty oxygen sensor can mislead the ECU about the air-fuel ratio, resulting in sluggish acceleration. Improper installation of modified parts, such as incorrect positioning of gas injectors, can also cause problems. I usually scan for error codes using diagnostic tools to troubleshoot simple issues like cleaning the filter or replacing spark plugs. Neglecting these issues long-term can damage the engine, so I recommend owners keep a record of driving sensations for easier repairs. Also, ensure the exhaust system is unobstructed; otherwise, increased backpressure can hinder performance.

[AndersonAnn]

My home-use natural gas vehicle has been experiencing insufficient power after prolonged use. Upon inspection, it was found that the gas filter is dirty and needs replacement. Worn-out spark plugs are also one of the reasons, causing delayed ignition. A faulty pressure reducer leads to unstable gas supply. Excessive carbon deposits affect combustion efficiency, resulting in weak acceleration. It is recommended to have a professional inspection at a workshop to ensure the proper functioning of the gas system and ignition. Regular maintenance can prevent such issues.