Re: Periodic misfire episodes (long) - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Periodic misfire episodes (long)
Posted by Paul-MD (more from Paul-MD) on Thu, 14 Sep 2006 20:34:56
In Reply to: Re: Periodic misfire episodes (long), Sweed Speed, Thu, 14 Sep 2006 19:47:22
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Thanks for the input, you bring up a good point about the fuel pump. After reading your post, I'm contemplating another thought on the auto vs. econ modes. The AC puts a heavy load/draw on the car when engaged. If the voltage regulator is going south, the electrical system may not maintain properly, so other components (such as the fuel pump, ignition, etc...) may be current "starved"?
Regarding the turbo, I have an MBC+A installed and get into the red with no problem in econ mode. When misfires occur, the gauge bounces from yellow to red and back in unison with the misses.
One other item I guess I should consider is the FPR, but I have no experience with one going bad, so I'm unaware of the symptoms.
Thanks again,
Paul
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