Thread: Ask a tuner...
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Old 04-01-2010, 09:06 PM   #55
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2014 P3 Import Auto
AWD Dyno, Mods, etc


Originally Posted by TruStinger View Post
58psi both stock and currently. DFCO(misspelled it earlier), deceleration fuel cut off. Im told it cuts fuel when you let off the gas so it doesnt dump a bunch of fuel causing a rich condition. This is on an LS1, running an OL SD tune.
I don't see any reason why changing the pumps would make a difference to that DFCO system. The pressure is the same so it would have changed nothing other than adding more flow when needed. I would have to research how the DFCO system works exactly. I'm sure I could figure it all out with time and the car. Have you tried other forums? I would be interested in seeing your car sometime, if you don't get it worked out stop by some day.
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