I noticed no one was helping you so I will try:
It sounds like a fuel problem. Not sure how many miles are on your car. Many components have an expected life cycle before maintenance or overhaul is required.
What does the repair manual say?(The manual is the first place to go).
Is your check engine light illuminated? If it is you could do a self test on it on the computer.
Difficult to diagnose your specific problem without the maintenance manual , your computer codes if any or existing mileage . Sounds like a leaky injector or mat sensor, O2 sensor if your model has those but I can't be for sure without consulting the maintenance manual for your specific model series.
I hope this helps
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