Re: Long Start - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Long Start
Posted by ak [Email] (more from ak) on Mon, 2 Apr 2012 06:54:35
In Reply to: Re: Long Start, Judge Edo, Fri, 30 Mar 2012 15:16:29
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I have an '02 Viggen which recently started a similar issue...I got on hear to research it and ran into your post. At initial "key on", I build approx. 40 psi at the fuel rail, then it drops instantly back to nothing once the pump stops. If I crank it, obviously it builds again. It can take up to 10 seconds to start the car sometimes. Sometimes it starts right up.. I swapped the fuel pressure regulator from a NG900 fuel rail that I had. However I think it is a different p/n regulator? It seemed to improve a bit, but is still not right.
I am thinking a check valve at the fuel pump line on top of the tank is not keeping the line charged as it should, especially when you turn the car off. Since those valves are the same on your car and mine, we may have the same issue.
An
posted by 24.9.134...
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