Dpf problem in car, how to fix it All Questions › Category: Automotive Electronics › Dpf problem in car, how to fix it 0 Vote Up Vote Down Vaishnavi Talawar asked 3 years ago 1 Answers 0 Vote Up Vote Down Vaishnavi Talawar answered 3 years ago Run your car continuously for 20-30 minutes and make sure speed will be 60km per hour.