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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
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WUR may be the issue. Hope you have the gauge to test the control pressures.

One other possibility could be a bad intercooler O-ring causing an air leak. It would be most noticable on boost, as some of the boosted air would escape resulting in very running. Spray some carb cleaner around all sealing junctions (turbo pipe rubber hose couplings as well as IC O-rings) to see if the engine idle changes.

This, all presuming you have an intercooler (sorry, I can't remember which year Porsche started puting an IC on the 930's).
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 10-12-2009, 11:52 AM
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