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TroyN TroyN is offline
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Join Date: Oct 2006
Location: Boulder, CO
Posts: 150
To me, if the car runs well up to 10 PSI (assumption not yet clarified), the overall system is probably in good shape. Once boost drops back below 10 PSI is everything good again?

It sounds like at 10 PSI either things go lean (i.e. engine consuming unmetered air, maybe due to the way the wastegate plumbing is set up?) or something is happening to ignition. Short of putting in a wide-band O2 sensor, how about taking the car to a dyno so you can see if it's going lean?
'01 996, w/ LN IMS!

Past: '96 993, '98 986, '82 911, '99 986, '87 930, '86 951, '85 911 GTS3 race car
Old 01-24-2009, 07:09 PM
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