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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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Originally Posted by 930 porsche View Post
No air leak or fuel pressure drop on top of engine. after a good warm up the Idle screw turned all the way into the close clockwise position will not shut the engine but keep it running at about 1050 RPM. When accelerating, the engine stop and then idles ok then dies off later on. I think it is under the car. Maybe air leak somewhere underneath. Any suggestion?
What exactly were your cold and warm control pressures, as well as the system pressure when you tested it? All these pieces of information tell different stories regarding the state of your WUR.

Also, do you have the means of measuring your AFR's - or at the very least have access to a CO% meter to check the emissions at the tailpipe? It would be helpful to know what your mixture is doing at least at idle, if not throughout the entire power band.
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; 03-15-2010 at 02:04 PM..
Old 03-15-2010, 02:00 PM
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