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i hate my truck lately


fastpakr

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That sounds right for a returnless FFV.
 


91stranger

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That sounds right for a returnless FFV.
What the heck is a returnless FFV???? I'm pretty good with acronyms too and that has me in a loop.
 

Craig0320

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FFV=Feed Forward Voltage
Little info.
Feedback variable FV is added to open loop or feed forward voltage signal FFV from block 226 to generate fuel pump voltage FPVOLT in summer 230. In this particular example, feed forward voltage FFV is generated in block 226 as a function of desired delta fuel pressure DΔFP and fluid flow through pump 72 (PUMPFF). When added with feedback variable FV, the resulting voltage (FPVOLT) applied to pump 72 will drive error signal "e" towards zero for maintaining minimum desired delta pressure DΔFP subject to the above described constraints.
 

fastpakr

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LOL.

I was talking about the Flex Fuel Vehicle (FFV) 3.0 engine. The returnless fuel systems used in later Rangers operate around 60psi, except the Flex Fuel systems that are about 10 psi lower. That difference is why I had to swap my fuel pump during the V8 conversion, and repin the pump wiring accordingly.
 

Craig0320

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Break it right the first time. Fix it better the next time.
Ha. still relevant. I will settle with a tie good sir.
 

ericbphoto

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In theory, theory and practice are the same. In practice, they are different.
FFV=Feed Forward Voltage
Little info.
Feedback variable FV is added to open loop or feed forward voltage signal FFV from block 226 to generate fuel pump voltage FPVOLT in summer 230. In this particular example, feed forward voltage FFV is generated in block 226 as a function of desired delta fuel pressure DΔFP and fluid flow through pump 72 (PUMPFF). When added with feedback variable FV, the resulting voltage (FPVOLT) applied to pump 72 will drive error signal "e" towards zero for maintaining minimum desired delta pressure DΔFP subject to the above described constraints.
If my employer didn't do random drug screenings, I would definitely want to smoke what you're smoking. That sounds like pure alien gibberish to me. But if you understand it, that's good. I want vehicles where I can connect the red wire to + and the black wire to - and the pump runs. :icon_twisted:
 

Craig0320

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V8 Engine Swap
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Location
Mississppi
Vehicle Year
1998
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Automatic
2WD / 4WD
4WD
My credo
Break it right the first time. Fix it better the next time.
You couldn't afford what I smoke.:icon_surprised:
 

91stranger

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Whats round on the sides and hi in the middle-OHIO
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4.2 straight six powered by gremlins, goblins and mudbloods.
Transmission
Automatic
2WD / 4WD
4WD
If my employer didn't do random drug screenings, I would definitely want to smoke what you're smoking. That sounds like pure alien gibberish to me. But if you understand it, that's good. I want vehicles where I can connect the red wire to + and the black wire to - and the pump runs. :icon_twisted:
That's what I was thinking. The more I read it the more confusing it got. I need this broke down in redneck terms lol.
 

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