I'm looking to have my ECM and FICM rolled back. But for some reason I can't ever get through to anyone via the phone. Is it the ECM that gives the poor fuel mileage or is it the FICM or a combo of the two? Why would on roll back the FICM and not the ECM (this was an option offered by Bill via PM on powerstroke.org). I just want my fuel economy back.
Thanks,
Tony T.
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