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mark houghton mark houghton is online now
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Join Date: Jul 2008
Location: Central Washington State
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Your title refers to "running rich". What makes you think that? If anything, running in colder ambient temperatures may lean things out a bit. How do your plugs look?

Possibly you've lost power to the WUR heating element, which would result in the warm control pressure staying too low and a rich mixture resulting. Do you have an AFR gauge to tell you that vital piece of information? Check all control pressures at the WUR with the proper gauge setup.

Also, your symptoms kind of sound like an intercooler leak. That would cause the bucking and poor running on even low boost and a rich condition.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 11-23-2009, 09:04 AM
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