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patkeefe patkeefe is offline
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Join Date: Apr 2004
Location: Ringwood, NJ
Posts: 2,850
You likely have a fuel delivery issue. Mine does the same sort of things. I just ran mine tonight for the first time in two months....stumbles, no power on boost at revs. I can make some of it go away with the boost retard control turned up to 3 deg per pound. I turned down my warm control pressure to 34 psi and same thing. It may be ignition, but it;s usually fuel. AFR's were going up a bit, so it may have been running out of fuel.

I had it running pretty good in May. It was colder weather. The SC fueling system is very finicky with ambient temps and a stock fuel head. Shaking out a homebuilt turbo system requires a lot of head banging, I have found out.
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Patrick E. Keefe
78 SC
01 Boxster
Old 07-27-2011, 05:57 PM
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