1994 Honda Accord Emission

148,900 MILES • 4 CYL • 2WD • AUTOMATIC
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JOYED92
  • MEMBER
  • 28 POSTS
Hi, My car fail the State emission inspection, because the HC and Co% was too high. So Now what should i change the Oxygen Sensor or the Catalytic Converter.
Nov 18, 2009 at 2:19 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
If both HC and CO are high, the vehicle may have a bad catalytic converter or an air pump problem.
Nov 18, 2009 at 7:07 PM
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