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The Terminator
Engine/Tuning
Opinion on fuel pressure gauge
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<blockquote data-quote="AznStanger3v" data-source="post: 13735830" data-attributes="member: 123066"><p>Hey guys, I think my sending unit on my AEM Fuel Pressure gauge went doo-doo on me. Let me know what you guys think:</p><p></p><p>Before putting in new plugs and fuel filter, key on engine off would read about 44psi. While driving it would give me a slight sway between 37-44psi.</p><p></p><p>After putting in new plugs and fuel filter KOEO reads 35psi, and while driving will go from 18psi (sometimes) to sway between 25-33psi. </p><p></p><p>I'm literally reading 10psi lower now, yet when I datalog at idle, reads a steady 39psi on the SCT. </p><p></p><p>Anyone have issues like this? A new sending unit is $66 and I'm trying to avoid dropping that coin. What I've tried:</p><p></p><p>-Purging the air from the lines. When I depressurized the fuel system for the filter, I unplugged the inertia switch and cranked it a couple times</p><p></p><p>-Taking the sending unit and adapter off, re-teflon pasting them, and reinstalling them.</p><p></p><p>-Checked for vacuum leaks everywhere</p><p></p><p>The car is running so smooth and has zero drivability issues. </p><p></p><p>Any help you guys can shoot my way would be awesome. Thanks!</p></blockquote><p></p>
[QUOTE="AznStanger3v, post: 13735830, member: 123066"] Hey guys, I think my sending unit on my AEM Fuel Pressure gauge went doo-doo on me. Let me know what you guys think: Before putting in new plugs and fuel filter, key on engine off would read about 44psi. While driving it would give me a slight sway between 37-44psi. After putting in new plugs and fuel filter KOEO reads 35psi, and while driving will go from 18psi (sometimes) to sway between 25-33psi. I'm literally reading 10psi lower now, yet when I datalog at idle, reads a steady 39psi on the SCT. Anyone have issues like this? A new sending unit is $66 and I'm trying to avoid dropping that coin. What I've tried: -Purging the air from the lines. When I depressurized the fuel system for the filter, I unplugged the inertia switch and cranked it a couple times -Taking the sending unit and adapter off, re-teflon pasting them, and reinstalling them. -Checked for vacuum leaks everywhere The car is running so smooth and has zero drivability issues. Any help you guys can shoot my way would be awesome. Thanks! [/QUOTE]
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Opinion on fuel pressure gauge
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