You've got to check fuel pressures - Saab 900 Bulletin Board - Saabnet.com
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You've got to check fuel pressures
Posted by Siegfried (more from Siegfried) on Wed, 8 Apr 2015 10:14:04
In Reply to: Re: it does sound like a fueling issue.., JamieP, Wed, 8 Apr 2015 10:00:18
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Jamie,
when saying 'pressures' (plural) I mean that you have to check the fuel pressure at different Intake/RPM points: at low-, mid- and high-RPMs at different load. Having the measured the intake manifold pressure and given the FPR specs you can compare what you've got with what you have to have got. That will be a full diagnosis.
As a half-measure you might want connecting an ordinary fuel pressure-gauge to the fuel rail and check the needle swaying an appropriate sway while you play with the throttle having the car stationary still.
My bet goes for your fuel pump which is heading south or your fuel line (the primary one) which got clogged.
Zig
posted by 5.18.22...
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