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With the immidate 0 PSI on shutdown I would say you have an issue with your regulator, return line on regulator hooked up wrong, or maybe something in the fuel basket but I don't think that could be it.. |
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Will try revving it on idle later tonight, see what it says. |
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42psi is low. Also, you 100% have a fuel leak. Pressure should remain in the system long after you turn the car off. Like many hours. |
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Driveability is a function of the tuner, in my opinion. A full SD tune can drive like stock with enough patience. A hybrid tune will get you that faster is all. If you look at your logs when you do WOT pulls, there is the Speed Density Digital (on/off) parameter that should switch "ON" at a predetermined threshold and then back "OFF" when you fall back below the trigger point. |
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Also, Seb had me set fuel pressure regulator to 52 psi with vacuum reference off, then when you connect it to the vacuum it will go to 42psi roughly. Every psi of boost will push back an extra pound of fuel pressure to combat the cylinder pressure to the injectors so you are always running 42psi. At least that is my setup. |
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Your pressure drop-off coupled with the smell of fuel is what points me to a leak. When I started up the car for the first time after the install, the pressure gauge on the regulator was too loose. You could definitely smell the gas and pressure would drop off to zero in under a minute. After getting it all nice and tight and verifying the other joints, my pressure stays steady long after shutdown, which is why that just seems normal to me. I went with the Fuelab regulator for my setup. |
I think I have the fuel lab aswell. I sure hope it is only a fuel leak somewhere that is also easy to fix and not some other problem causing lean condition under boost. :(
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