News article

Case Study: Porsche Cayenne misfire DTC and engine warning light mystery


"The diagnostic test always reads the same DTC, one or more cylinders misfire - sometimes all of the cylinders misfire - and the DTC has a very high misfire counter. When previously repairing the vehicle, all related parts; coils, spark plugs, injectors, sensors, and fuel delivery were replaced. Each time the test drive was carried out, the vehicle passed and was returned to the customer. However, the vehicle would return a few days or weeks later with the same DTC issues."

Our latest case study is available in full on the Pico Auto website.