What Causes the Throttle of a Diesel Electronic Fuel Injection Vehicle to Fail to Accelerate?

[Alexander]

Below are the specific reasons why the throttle of an electronic fuel injection vehicle fails to accelerate: Fuel Line Blockage: Fuel line blockage leads to poor fuel supply, causing carbon buildup in areas such as the valves, idle motor, intake manifold, combustion chamber, and spark plugs. Low Rail Pressure: Low rail pressure due to injector leakage or common rail pressure relief valve leakage results in insufficient fuel supply. Incorrect Air-Fuel Ratio: Incorrect air-fuel ratio: When the air-fuel ratio is incorrect, the vehicle may experience unstable idling or a feeling of fuel starvation. This issue is easily resolved by adjusting the idle screw until the idle stabilizes. Carburetor Blockage: Carburetor blockage: If the idle metering orifice is blocked, there will be no idle; if the main metering orifice is blocked, high-speed acceleration will be sluggish.