codes say po171 & po174 With misfire cylinder 5 check engine lite is flashing

1998 FORD EXPEDITION
222,000 MILES
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KARLHOWARD
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i replaced the 90 degree rubber hose that sits behind throttle body amd was told to add fuel injector cleaner to gas tank the car runs acts like its not getting fuel at times
Oct 15, 2012 at 4:17 PM
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