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Hello all, I have been lurking around here for almost 2 years. I have a 2006 Cayenne S with automatic transmission with about 70,000 miles. This morning I went to drive it to the car wash. When I went to accelerate onto the autobahn the engine acted as if it were in limp mode. There was no power under load above 3,500 RPM. In neutral the engine will not rev past 4200 RPM. Here is what it is not doing or has been replaced - It starts and idles fine. - plugs and coils replaced last year less than 10 thousand miles ago. - I do not have a check engine light on. I am thinking: 1. MAF sen