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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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Boosted air leak (as in turbo plumbing pipes/hoses and/or o'rings). Let air escape, and the ratio of fuel already delivered against the lost air will cause a pig rich condition. Even though you've done the starter-fluid-around -the-o'rings test, it is possible that things are sealing just fine until you pressurize them. You may not see any leaks when cruising non-boosted (such as at idle). Pull the IC, visually check the rings, inspect all vacuum and turbo hoses for splits or cracks. That's painless, free, and easy....put that to bed first, then move on to other possibilities.
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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 06-16-2012, 06:25 PM
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