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Have you looked at your idle air control valve? Maybe it's not letting as much air in as it should be? Just another thought....
Jordan, I have cleaned it last year, and I have a new MAP sensor. My FPR is a really low mileage unit, I bought it off a guy who converted his car to boost shortly after buying the car. My idle is rock solid once the car is running, starting is not an issue within a 48 hour period, only if the car is left sitting more than 2 days. It fired up perfectly today as I was driving the car yesterday, it might be the car's way of starving for attention from me. lol.