Quote:
Originally Posted by silver-S
I got these codes when my air-oil separator went bad. Simple test: if you can't get the oil filler cap off when the engine's running, that's your problem. The bad AOS puts a fierce vacuum in the filler tube. You may see a big burst of white smoke on starting, but I've also seen a Boxster trailing a faint stream of burning oil smoke that the owner was probably unaware of. Worth checking, in any case, since it's an easy test for a common problem.
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I pass the vacuum oil cap test, but at my track day a few months ago I had someone report that they saw a faint stream of smoke behind my car.
Do cars pull more vacuum at WOT/High RPM/High power situations?
If so then maybe I am at preliminary stages of AOS failure?
Fun times this Christmas break
Steve
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