Quote:
Originally Posted by blue62
Those codes are for telling you that the fuel system has reached the rich mixture threshold for both banks. In other words it is adding all the fuel it can.
The system adds fuel in response to lean conditions.
So you most likely have a vacuum leak.
Hard starting when warm and lumpy or rough idle are also indications of a vacuum leak.
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hello, yes and i have previously had the vacuum tested with a smoke test; some repairs were necessary and after those the smoke test did not produce any leaks
the mechanic i have has over 20 years with porsche and even he is stumped
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