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

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FICM reprogrammed...worse fuel economy?

6.0L PSD FICM Reprogramming
Power Hungry Performance revolutionized the 6.0L FICM (Fuel Injection Control Module) programming and has been the industry standard for FICM modification for almost 15 years.

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Thu, June 30th, 2011, 08:01 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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