2003 Ford Focus ODB-II Trouble Code P0191

2003 FORD FOCUS
90,000 MILES • 4 CYL • FWD • AUTOMATIC
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[email protected]
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What is the most probable cause for this failure code.
Aug 20, 2008 at 9:34 AM
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BMRFIXIT
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Possible cause and all need to be checked :

High fuel pressure
Low fuel pressure
excessive resistance in circuit
faulty FRP sensor
low or no fuel
Aug 26, 2008 at 6:08 AM