2003 procharged mach recently retuned. Fuel pressure rail sensor replaced by tuner as an attempt to correct issue. Car starts and shuts off after 20 seconds first 2 attempts. Third attempt remains on without issues and will start and run correctly if started daily. When the car sits for a few days same condition occurs starting and running fine at third attempt. Thanks in advance for any help to solve this through the winter as it sits inside out of the snow and salt