Why does the Jetta car feel sluggish and stuffy when accelerating?

[LaBrooklyn]

Car feeling stuffy is due to a lean air-fuel mixture or issues with the high-voltage circuit. Below are the specific details: Solution: If the issue is with the carburetor, a mechanic should clean the carburetor, or use a computer decoder to troubleshoot sensor and wiring faults, and check if the muffler is clogged. Additional information: If replacing the fuel filter doesn’t help, the fuel pump pressure should be tested. Overfilling the engine oil can increase crankcase pressure, leading to sluggish acceleration. Then, check if the ignition coil is leaking or loose, and if the spark plugs are worn out, causing poor ignition.