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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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Quote:
Originally Posted by 9dreizig View Post
start with the basics,,
timing, are all cylinders firing ?
fuel ( AFR ration ? sounds like it's running rich)
+1^^^^ And after that all checks out, you should also verify that your fuel control pressures are correct. It takes a specialized gauge setup, but really quite simple to check.

While you're poking around back there, you may want to verify that all your intercooler seals and turbo pipes/hoses aren't leaking. One of the possible things that can cause your symptoms is a simple air leak someplace prior to the throttle body....quite common for the o-rings from the up-pipe from the turbo and/or the o-rings for the intercooler connections to tear or dislodge. Air will leak out at those points and cause a very rich mixture, getting more and more pronounced as you step on the gas. And as a matter of course, check all vacuum hoses as well. 90% of the time it's something so basic and obvious.

After 6 years of storage, I'm wondering on the general condition of the fuel system. Might be all gummed up inside? I would say to run some fuel injector cleaner in your tank, but I'm not sure if it will disolve real serious varnish. Did you put in a new fuel filter since taking her out of storage? Do you know for certain that both of your fuel pumps are running?
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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.

Last edited by mark houghton; 06-27-2010 at 07:09 PM..
Old 06-27-2010, 07:01 PM
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