Thread: Vapor lock
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mooney265 mooney265 is offline
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Join Date: Sep 2008
Location: New Orleans
Posts: 1,365
I had a problem similar to this and was able to immediately correct it by:

lowering my WUR cold start pressure. it was too high at cold start and that was causing a "too lean" condition when attempting to start when cold. what little fuel was evaporating before combustion could take place... [my best guess]

there are three pressure settings for the WUR: cold, warm, and boost. the first two can be checked with a CIS test kit and to check boost, you would need to hook up a mighty-vac to the bottom of the WUR to check boost.

Oh yeah, I too thought it was my accumulator... still got the same accumulator, and she starts right up cold/warm/or hot...
LIVN80S - - Red '79 Porsche 930 Steel Slant Nose Conversion [in 1987] w. 46k miles 3.3L; 964 Cams; K27HF @ 1.0 BAR, with Garrettson Intercooler; Rarly Zork; CIS Flowtech Fuel Head & BL-WUR.
Old 09-18-2009, 07:36 PM
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