Mechanics

COULD YOU TELL ME HOW TO ELMINATE CODES PO171 AND PO300

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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Peewee35
October 12, 2011.



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.

Docfixit
Oct 12, 2011.