2003 Ford Focus misfiring code PO300

Tiny
MLE
  • MEMBER
  • 2003 FORD FOCUS
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 96,000 MILES
My 2003 ford focus has been idiling high and now it is missfiring really bad it is bring up the code Po300 what do u think the problem could be?
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Thursday, June 3rd, 2010 AT 11:54 AM

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Tiny
RASMATAZ
  • MEMBER
Could be caused by vacuum leak or bad fuel.
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Friday, June 4th, 2010 AT 2:16 AM

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