The first start of the day takes too long to fire up. The second start is normal if its done in under an hour or so it seems. So my question is what holds the pressure in the rail. The FPR was replaced a year ago as it was leaking with an aftermarket regulator ( standard motor products) from the rock as the OEM Bosch unit is now unobtainium . The fuel pump check valve was also replaced when the fuel filter was replaced as preventative maintenance . There is no fuel in the vacuum line of the FPR. It seems like the FPR has failed already.
Thank you
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