FICM reprogrammed...worse fuel economy? - Power Hungry Performance Forum

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FICM reprogrammed...worse fuel economy?

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6.0L PSD FICM Reprogramming Power Hungry Performance 6.0L FICM (Fuel Injection Control Module) programming has been
the industry standard for in FICM modification almost 10 years.

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Thu, June 30th, 2011, 06:01 PM

BlkSC

Whopper Junior

Join Date: Oct 2010

Posts: 2

FICM reprogrammed...worse fuel economy?

I bought my 2003 F250 CCSB 4X4 last October and around December I got a ECM rollback and remote FICM reprogramming and since I've can't seem to get above 15.4 MPG. Driving the truck back from Iowa when I bought it I got close to 17 MPG and now I can't even break 15.5 MPG, even on straight highway. Anybody else have this happen?

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