1999 Chevy Cavalier error codes po171, po300

1999 CHEVROLET CAVALIER
111,313 MILES • 4 CYL • 2WD • AUTOMATIC
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WHILDEBRAND
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  • 1 POST
just wondering what is making my car run as bad as it is. 1999 chevy cavalier error codes po171 and po300
Jan 25, 2008 at 10:35 AM
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MASTERTECHTIM
  • ✓ASE Certified Mechanic
  • 4,750 POSTS
  • ASE Certified Mechanic
sounds like you need a tune up and possibly a o2 sensor.
Jan 25, 2008 at 10:38 AM
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