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I have a 2007 f150 5.4 lariat that sputters when I mash the gas , 93,000 miles , just changed fuel filter (had black trash in it), added lucas injector cleaner to full tank and ran tank to neer empty, filled tank , added lucas again and burned half tank then changed fuel filter again . still has same problem , gave a code one time, turned off truck and code went off. never gave code again .checked it with a code reader and everything is fine, engine runs great at normal driving speeds , has anyone had this problem ? I can turn some wrenches, but would like to go straight to the problem if i could and not spend a weekend finding the problem. Any ideas ?
Thanks in advance
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