Wingroad Manifold Pressure Sensor Issue

I also drive a Wingroad and experienced very similar symptoms some time ago. If it is the manifold pressure sensor, have you verified the sensor readings using an OBD-II scanner? Were the readings within the expected range?

I did check the sensor readings with an OBD-II scanner. The readings were consistently out of range, indicating a problem with the sensor itself or a vacuum leak affecting its performance. Did your issue also present with out-of-range sensor readings, and how did you resolve it?

Yes, the readings were similarly erratic and outside the normal parameters. Given your diagnostic results, I strongly suggest you visit a qualified workshop as soon as possible to have the issue properly diagnosed and repaired. Delaying could lead to further engine damage.

I appreciate the confirmation and advice. I brought it to a workshop as you suggested. It was indeed the manifold pressure sensor, triggered by a vacuum leak. Replacing the sensor and fixing the leak cost 235€. Now it is running perfectly again!