Can you flush the entire system and just restore? Sometimes that might be the easiest way. I usually keep a backup of all important things and another of some less important things that I update every now and then so all that is lost is some time to re-install and add back the necessary stuff

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow