Re: Lean mixture?weak fuel pump?(long) - Saab 900 Bulletin Board - Saabnet.com
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Re: Lean mixture?weak fuel pump?(long)
Posted by Carl (more from Carl) on Wed, 18 Mar 2009 06:50:58
In Reply to: Lean mixture?weak fuel pump?(long), Frank Myers, Wed, 18 Mar 2009 05:33:34
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I had/have the exact same problem w/ my 87 SPG.
I'm running 10-15% less fuel pressure than the fpr should run (tested w/ 2 fpr's).
Changed AIC, AFM, plugs, cap, rotor, fuel filter.
Yesterday I swapped the computer, and so far no stumbling.
I was told the fuel pressure problem may be the prepump not keeping up with the fuel pump itself. But it does keep enough pressure for the car to run.
You may want to swap computers if you have one.
posted by 76.17.10...
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