2005 Honda Civic 02 sensors

2005 HONDA CIVIC
25,849 MILES • 6 CYL • 2WD • AUTOMATIC
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SMARTIE
  • MEMBER
  • 1 POST
off the exhaust manifold the sensor has 4 wires, 2 black for ground and then a green and a white wire.
where do the white and green connec to.
Oct 6, 2008 at 9:33 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi smartie,

The 2 black wires are NOT for ground.
They are the Heated O2 sensor circuit. Connected to Yellow/Black (+) and Orange/Black (-) wire respectively.

I need the wire colors on the harness from ECM to know which is the correct one for the other 2 wires.
Oct 15, 2008 at 7:35 AM
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