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skibum761 replied to azelaya's topic in 92A (Cayenne, Cayenne Diesel, Cayenne S, Cayenne Turbo, Cayenne S Hybrid)Is there any issue with running a 275/40/19 instead of a 275/45/19?
We just bought an 2004 Cayenne S and it's throwing a CEL for P0491-Secondary Air Injection Sytem. I cleared the code and it came back within the last 3 days. My questions is where is the Vacuum system located at on bank one and oriented on the car? I'm pretty positive it's probably a vacuum line came off or something minor to fix. Any help will be greatly appreciated.