Community Q&A Question: What types of issues with Walbro 255 on v6

Asking About: Mustang Walbro 255LPH Fuel Pump Module (01-04)


What types of issues with Walbro 255 on v6

Will this pump run rich for bolt on 2003 v6 plan to to do a 4.3 (24 ilbs injectors) in 9 months but need a pump now?
from Torrance |
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Accepted Answer
Once the adaptive learning in the PCM adapts to the new fuel pump flow, it will still regulate the voltage properly to maintain fuel supply. Be sure to disconnect the battery to allow the PCM to reset and upon first startup, allow the car to idle about 10 minutes and then take a 10 mile drive under normal operation (don't get on it) with sever stop and go situations and the PCM will have learned the new pump.
from Hewitt |
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