Could you tell me how to elminate codes PO171 and PO300

Tiny
PEEWEE35
  • 1997 PONTIAC BONNEVILLE
  • 15,700 MILES

My check engine light is on and im tryin to figure out what these codes are and get them takin car of could you help please

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Wednesday, October 12th, 2011 AT 5:04 PM

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Tiny
DOCFIXIT
  • EXPERT
  • 18,987 POSTS

171 fuel trim system lean so maybe vacuum leak and about 20 other things. Need a scan tool to diagnose.
300 the most difficult random missfire again a scan tool needed.

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Wednesday, October 12th, 2011 AT 6:19 PM

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