2000 Mercury Sable oxygen sensors

2000 MERCURY SABLE
166,000 MILES • 6 CYL • FWD • AUTOMATIC
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JLP10
  • MEMBER
  • 1 POST
My check engine light is on. My local parts store checked the code and it says bank two sensor two is bad. I replaced the oxygen sensor on the cyclinder bank closest to the firewall after the cat and the check engine still comes back on after resetting it. Did I change the correct sensor ? HELP ! Thank You !!
Sep 14, 2009 at 7:30 PM
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RACEFAN966
  • ✓ASE Certified Mechanic
  • 5,029 POSTS
  • ASE Certified Mechanic
Ok here is how it breaks down. Bank 1 is the right bank (closest to the fire wall), bank 2 is the left bank (closest to the radiator. Now sensor 1 is the one closest to the engine and sensor 2 is the one behind the cat. convertor. So no you replaced the wrong one. Now you know how they are labeled. Hope this helps.
Sep 15, 2009 at 11:31 AM
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