1999 Honda Civic o2 sensor

1999 HONDA CIVIC
109,000 MILES • 4 CYL • FWD • AUTOMATIC
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CRUZIN99CIVI
  • MEMBER
  • 1 POST
the engine code came up low voltage to o2 sensor what would cause that or does the sensor just need replaced i pulled the heat shield off and there is a crack in the manifold where the sensor bolts in could that be a cause
Feb 10, 2008 at 10:49 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
flip your o2 sensors around and if the problem moves with the o2 sensor then its the sensor if its not then it is the crack in the pipe.
Feb 10, 2008 at 10:55 AM
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