What's the reason for the Jinbei vehicle's sluggish acceleration and muffled performance when refueling?

1 Answers
DelEverett
07/30/25 6:14am
This situation may occur due to damage to certain sensors around the engine, or damage to certain components around the engine. The most likely causes are a faulty throttle body or mass air flow sensor. Here is additional information: 1. Engine fuel system: The engine fuel system is a common problem area in vehicles. Clogged fuel injectors, leaking fuel lines, reduced fuel pump power, or a blocked fuel filter can all lead to poor vehicle performance. In addition to fuel, the engine also requires air. If components like the air filter or throttle body are clogged or malfunctioning, resulting in insufficient air intake, it can also cause sluggish acceleration and slow speed increase. 2. Crankshaft position sensor failure: This can cause the vehicle to lose the timing of ignition and fuel injection, putting the vehicle into a limp mode with poor acceleration. Replacing the sensor can fix the issue. A damaged fuel pump or fuel pump pressure leakage, leading to insufficient fuel pressure and inadequate fuel supply, will naturally result in poor acceleration. Replacing the fuel pump can resolve this. A clogged fuel pump filter can also cause insufficient fuel pressure, and replacing the filter can fix the problem.
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