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Is It A Gross Leak In The EVAP System? This 2008 Porsche Cayenne GTS Is producing a P0455 Code but is it in the EVAP system? In this video, we’re going to cover the P0455 Code and explore what we found.
When is a vacuum leak not a vacuum leak?
When it’s hiding in the EVAP system of a Porsche Cayenne.
A P0455 code points to an EVAP problem, but the EVAP system checks out OK with our smoke tester. And the purge valve checks out as well. So where could the problem lie?
Our derFix Super Sleuths unravel the mystery.