Kubistar Manifold Pressure Sensor Issue

Sounds like a possible manifold pressure sensor failure, yeah. That sensor (sometimes called a MAP sensor) tells the engine control unit (ECU) how much air is going into the engine. Reduced engine power and poor response are classic symptoms. Has the car been throwing any specific error codes?

Thanks for the quick response! I did manage to pull some codes. It's showing a P0106 error, which seems to confirm the manifold pressure sensor issue. Given the symptoms and the code, does it still sound like a vacuum leak could be the underlying problem, or is it more likely just the sensor itself that's gone bad? I'm trying to figure out if I should start looking for vacuum leaks before replacing the sensor. I am also wondering what the typical lifespan of automotive sensors is, or are there any ways to test them?

P0106 definitely points to a problem with the manifold pressure. A vacuum leak could be the cause, as it would throw off the pressure readings, but it's more common for the sensor itself to fail, especially at that mileage. Testing sensors requires special equipment and know-how. Honestly, with those symptoms and the code, I'd recommend taking it to a trusted mechanic. They can properly diagnose the issue and confirm if it's just the sensor or something more complex. Better safe than sorry!

Appreciate the advice. I took it to a workshop and they confirmed it was a faulty manifold pressure sensor. They replaced it, and the total repair cost was 235€. Everything seems to be running smoothly now. Thanks again for pointing me in the right direction!