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Upon start up and for the first ten-ish minutes of driving, fuel pressure is normal. After the car warms up it begins to drop off in a linear fashion until it's down to 25 psi at idle. The fuel pressure regulator and damper have been swapped out to no effect. The fuel pump ohms fine. Nothing appears to be burnt or blown inside the fuel pump controller case. Fuel filter has been changed. After switching on the ignition without cranking the engine over, the fuel pump will bring the pressure up to the right amount and then it starts dropping again. To my knowledge this is normal but how fast is it supposed to bleed down? Mine drops about .1 psi every couple of seconds. Is that too fast, indicating a leak somewhere?
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