Mechanics

ODB-II TROUBLE CODE P0191

2003 Ford Focus

Computer problem
2003 Ford Focus 4 cyl Front Wheel Drive Automatic 90000 miles

What is the most probable cause for this failure code.
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Dkeith@sikorsky.com
August 20, 2008.



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

BMRFIXIT
Aug 26, 2008.