Hi! I have a 1.4 MPI (63 kW) built in 2009 (MKB: CGGB) in the VW Polo 6R. KM-Stand: 197,000 With the engine there is a problem. The symtoms usually occur after a 2-5 minutes full-gas drive: – First there is a slight jerking. – Then the engine massively loses power – The speed sinks gradually to up to 120 km/h in the 4th gear – The engine nags very strongly at all speeds. – In the error memory appears: Error code P0328; Knock Sensor 1 Circuit High Input. – Once I also had the EPC and the exhaust warning light in the combination instrument on. At this one time the power was reduced even more and in the error memory was another entry:P0303: Cylinder 3 Misfire Detected. – If the error occurs I stop and start the engine again – the nailing is still there. Even after the third or fourth reboot. But when I still continue driving, there can always be a problem after 1 km.