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pedsurg
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Everything posted by pedsurg
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This carbon buildup is a problem with any DFI engine, the Air flow is getting distrubed as it goes by the valves, the DFI engine needs the air to come in at a certain angle and is important during stratified injection. I just saw today an audi with same problem, the audi guys are keeping busy with this issue. I have also seen this on very low mileage cayenne's as well. The valves are like heat sinks when the engine is turned off, the oil fumes in the intake are collecting on the valves. The only solution is preventive maintenance, there is a service that inducts a strong mist of induction cleaner at idle that will help keep the valves clean and the intake. Looks like when these cars go out of warranty, there are going to be some high repair bills if this preventive maint is not done. Just an opinion from a Porsche Miester Tech. :unsure: Vizcarra44: Thanks Could you elaborate on this service ?? Is it a reg Porsche dfi program or a generic inductor cleaning, or neither ?? What should we dfi owners be doing to prevent this ?? Thanks again Jack Tampa