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The Terminator
Engine/Tuning
Fluctuating / Vibrating Fuel Gauge And Pressure Drop Across Injectors
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<blockquote data-quote="03cobra#2" data-source="post: 16821429" data-attributes="member: 52057"><p>I worked on a little project that I wanted to share. I noticed that after I got my fuel system together the liquid filled gauge on my fuel rail vibrated like crazy when the engine was running...same thing with the electric gauge in my cabin that used a sender on the fuel rail as well. When the engine is off and key on (return fuel system) everything is nice and steady. I decided to ditch the liquid filled gauge on the rail and relocate the sender for the electric fuel pressure gauge to the fuel regulator which is located in the drivers fender well. Fuel pressure gauge reads nice and smooth now and doesn't jump around like it used to. Maybe related to the cams / choppy idle? Which gets me thinking. </p><p></p><p>What if the FRPS which is located on the rail goes through the same vibration? When I the FRPS it's fairly stable but does jump around a bit in a datalog. Has anyone moved the FRPS off the fuel rail and relocated it in the engine bay, like remote mounting it? car runs good, just doing some tweaking.</p></blockquote><p></p>
[QUOTE="03cobra#2, post: 16821429, member: 52057"] I worked on a little project that I wanted to share. I noticed that after I got my fuel system together the liquid filled gauge on my fuel rail vibrated like crazy when the engine was running...same thing with the electric gauge in my cabin that used a sender on the fuel rail as well. When the engine is off and key on (return fuel system) everything is nice and steady. I decided to ditch the liquid filled gauge on the rail and relocate the sender for the electric fuel pressure gauge to the fuel regulator which is located in the drivers fender well. Fuel pressure gauge reads nice and smooth now and doesn't jump around like it used to. Maybe related to the cams / choppy idle? Which gets me thinking. What if the FRPS which is located on the rail goes through the same vibration? When I the FRPS it's fairly stable but does jump around a bit in a datalog. Has anyone moved the FRPS off the fuel rail and relocated it in the engine bay, like remote mounting it? car runs good, just doing some tweaking. [/QUOTE]
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Fluctuating / Vibrating Fuel Gauge And Pressure Drop Across Injectors
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