Fuel Pump Check Valves (90 SPG No Start Ctd) - Saab 900 Bulletin Board - Saabnet.com
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Fuel Pump Check Valves (90 SPG No Start Ctd)
Posted by Todd N [Email] (more from Todd N) on Fri, 20 May 2011 11:16:31
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I (think I) understand the point of the check valve in the fuel pump supply line is to maintain pressure to the fuel rail for a period of time after the engine shuts off.
What does the check valve in the return line do?
Still no start on my 90 SPG. Pulled fuel rail with injectors hooked up. When cranking fuel streamed out of the injectors like a garden hose with no nozzle hooked up. Replaced fuel injectors with spares and same thing. I think low fuel pressure is just not atomizing fuel = weak fuel pump).
posted by 71.13.16...
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